As rain battered against the windshield of Irving’s car, the mouse sat in Friday evening traffic, which was at a dead halt. While he increased the frequency of the car’s wipers with one hand, he turned the knob on his car’s radio with the other for something to listen to. The radio moved through the classical stations he’d listen to when stressed, to the religious ones, to the adult contemporary ones his wife would put on when they and their son drove together on weekends, to the top 40 stations he never wanted to hear. He briefly stopped on a traffic report. 


“...Highway between exits 20 and 23. There’s a standstill on I-270 Eastbound, caused by a tractor trailer thanks to all this heavy rain. Steer clear of I-270 if you want to be home on time, folks. Traffic’s thankfully pretty light on...”


The bespectacled mouse looked through his windshield to see the I-270 East marker sign.


“Well...fuck me.” He quietly said to himself.


---------------------
Irving got out of his car, walking up to the front door of his house, getting drenched by the rain in the process. Just as he was about to put his key in the door, it opened.


“You’re home.” Beth said, rather annoyed.


“Traffic stopped me on the highway, hon. Couldn’t be helped.” He responded, trying to peck her on the cheek.


“Couldn’t call home?” She asked, evading her husband’s lips.


“I tried, no service over there.”


“Well, in any case, your dinner’s in the kitchen. You may want to microwave it for a bit, Irv.”


“Yay, daddy!” A chubby little mouse squeaked from the living room. He ran to the front door to greet his father.


“My little clone!” Irving caught the mouse cub with his hands and picked him up, getting him soaking wet in the process. Beth didn’t like this.


“You’re getting Ralph all wet!” Beth said, facepalming.


“What can I do? He ran to me before I could get my coat off.”


“Hi daddy.” Ralph smiled.


Irving rubbed his nose against the cub’s.


“How was school, bud?”


“Good. It’s Friday, no homework!”


“Well, that’s one less headache for all of us!” Irving started kissing his son on the cheek numerous times.


Beth rolled her eyes.


“Come on, Ralph. Now that dad’s home, it’s time for you to take your bath.”


“Aww...can daddy join me? He’s wet too!”


“No can do, Ralph. Into the bathroom.” Beth said.


Irving put his son down so he could go have his bath.


“I’m gonna go change out of my clothes, dear.”


Beth acknowledged him with a silent nod.


---------------------
Now in a dry t-shirt and a fresh pair of briefs, the cream-colored mouse sat in the kitchen, eating his reheated dinner. He silently took a look at the photos he and his wife decorated the walls with, the professional Christmas photos of him, Beth and Ralph, Ralph’s baby photos, pictures of the three of them on vacation, pictures of just the husband and wife, and wedding photos of a longer-haired, less-scowling Beth, and a not-as-fat Irving. He looked at himself in his wedding tux, comparing his much stockier, rounder figure with his slimmer, pre-marital self. Beth wasn’t quite as skinny as she’d been either, but the topic of their physical appearance never really came up in conversation, especially after Ralph came along.


Ralph got noticeably pudgier in his school photos as well, also needing a pair of glasses as time went on.


“Chip off the old block.” Irving muttered to himself between bites.


After finishing his dinner, he cleaned off his dish in the sink to save himself the headache of his wife getting angry at him for yet another thing. Once it was done, he headed into his living room, and laid on the couch. The weekend could not have come sooner.


“Ahhh...” The mouse relaxed. 


“Let’s watch TV!” Shouted Ralph from the other room.


The similarly-dressed little mouse cub ran into the living room and jumped on the other end of the couch.


“What’s this?” Irving asked. “No pajamas? Just a t-shirt and a teensy pair of undies?”


“He wanted to be dressed like you, Irv. He really loves you.” Beth said, a bit less angry now.


“Who doesn’t?” Irving smiled.


His wife moved in for the peck on the cheek she evaded earlier.


“I’m gonna go watch my shows in our room, dear. You enjoy some TV with Ralph.”


“Will do.” The father mouse grinned at his wife.


While this was happening, the little mouse cub channel surfed to find something good on, settling for the children’s station.


“Keep the volume low, Ralph. You can hear it at this level.” Beth said.


“Okay.” The mouse cub smiled at his mother.


---------------------
The two mice chatted while they watched cartoons.


“And so then I went to Teddy, and said ‘What are you doing?’ and the bear said ‘shh...I’m making a weenie out of clay.’ Hehehehehe!” The little mouse cub giggled. “He made a big wiener.”


The old mouse found this hilarious.


“Hahahahaha! What did the teacher say?”


“Nothing, he smashed it and made something else before she saw. He said if she caught him he’d say it was a hot dog.”


The two mice laughed some more.


“Do you think it’s funny daddy?”


“I do! You think grown-ups don’t think wieners are funny? My employees draw them on their notes during meetings all the time. When I noticed them, I drew one on my next powerpoint to get their attention.”


The older mouse got into his business voice.


“As you can see here, next to my lovely artwork of a wiener, our sales for the last two quarters. Quarter three was very successful, the bar being just as long as the wiener. Last quarter didn’t quite measure up, however.”


The mouse cub laughed. 


“Don’t tell anyone what Teddy did though, okay? It’s secret.”


“Of course, buddy. Weenie drawings and sculptures always stay secret.” Irving winked at his son.


“Yay!” The mouse cub went back to focusing on the TV. The older mouse noticed the stubby little bulge between his legs. Talk of private parts must have excited him, Irving thought. As time passed, the little bulge subsided.


“So, why no pajamas, bud? Not cold in just your briefs?”


“Because you like wearing a t-shirt and briefs too!”


It was true, whenever Irving was home, he tended not to wear his pants unless company was over. Beth said nothing about the fact, understanding the want for comfort in one’s own home. Since Irving’s choice of underwear was rather plain, and the bulge his genitals made was nondescript and not-so-obvious, she paid no mind over the fact that Ralph would see it. However, unless she was in her own nightclothes, she usually wore pants herself.


“I guess you’re right. I just love laying around in my tighty-whities.” The old mouse spread his bare legs and stretched out to reveal his uncharacteristic bulge. “It’s very comfy.”


The chubby little mouse cub followed suit, and spread his own legs, getting comfortable on the couch. Like Irving, Ralph’s privates didn’t really make any noticeable outline on his underwear, aside from the slight round bulge the little mouse cub’s scrotum was creating.


Unlike Irving’s plain white briefs, Ralph’s had green trim, with some of his favorite cartoon characters printed on it. There was also a faint yellow circle in front of where the cub’s penis might’ve been behind, indicating that the little mouse still wasn’t quite sure how to deal with post-urination drip.


The two bespectacled mice smiled at each other for a minute. Ralph then placed his bare foot paw against his father’s, pressing against it. Irving had rather big, wide feet by comparison. Irving grinned at this, pressing back, moving the two mice feet around.


“Like daddy’s feet?” Irving asked.


“Yes!” Ralph exclaimed.


“What makes you like my feet?”


“They’re like mine, but bigger!”


“That’s why I like calling you my little clone. You’re just like me, everywhere, except still a little guy.”


Irving sat back up and grabbed his son, laying the cub on top of him. Ralph squeaked and happily rested on top of his daddy.


“Still the affectionate cub you always were. Most cubs your age would start the process of breaking away.”


“Why?”


“Well, I don’t really know. Age, interests. Children stop being so interested in what their parents do and start doing their own thing, becoming more independent.”


“But you’re fun, daddy.”


Irving smiled again.


“I’m happy you still think that, buddy.”


The mouse daddy pecked his son’s chubby cheeks some more. Ralph turned and started to peck daddy’s face back.


“Awww.” Irving grinned. Not long after, he picked up his son again and placed him back on the other end of the couch.


“Sorry bud, we’re both radiating a lot of body heat on each other. I need to cool down a bit.”


The mouse cub went back to the cartoon for awhile, while Irving zoned out.


Later, a rather exciting part of the cartoon started. Ralph jumped off the couch and shouted in joy. This snapped Irving back to attention.


As the mouse cub jumped off the couch, the rather awkward movement caused the little mouse cub’s briefs to lower a bit, revealing a good portion of Ralph’s bare rear end.


“Yeeeaahh! Go! Go!”


“Oop, looks like the moon’s finally coming out on this rainy night! Cover your butt back up, silly.” Irving grinned.


Ralph giggled. “My butt!” The mouse cub wiggled it at his father before lifting his briefs back up.


“Such a lewd little clone.” Irving snickered.


The giggly mouse cub sat back on the couch with his father.


“What’s ‘lewd’ mean?”


“Heh heh, just that you like being a little naughty by showing or talking about private areas.”


“Like my butt?”

“Yup. Like that butt of yours.”


“It was an accident, though.”


“I know, buddy. I’m being silly too.”


As time went on, the two continued to watch Ralph’s cartoons. While Irving started investing himself in what was going on, the mouse cub had a naughty idea.


When another exciting portion of the cartoon came up, the little mouse jumped off the couch again and cheered. After he was done, the mouse cub looked back at his father, and lowered the waistband of his briefs, revealing his bare rear end again—all of it this time—sticking his tongue out at his daddy.


“Ohh no, bare mouse boy butt again! How lewd!” Irving said, in mock shock, as his son mooned him.


Ralph giggled some more, pulling his underwear back up.


“Silly, that was deliberate this time. Now you really ARE lewd.” Irving said with fake annoyance.


The mouse cub jumped back on the couch.


“I’m lewd!”


“Such a funny little cub.” The mouse daddy responded.


Ralph giggled and smiled at his dad. Irving returned the smile again.


As more time passed, the cartoon had reached yet another peak of excitement. Genuinely enthusiastic, Ralph jumped off the couch yet again and cheered at the TV. There weren’t any accidental pulldowns this time around, but Irving already had an idea of where this might have been going.


Once Ralph stopped cheering, he looked back at his father.


“Gonna moon daddy again?” Irving asked.


“No.” Ralph smiled, turning around. “Now you’re gonna see...”


Ralph pulled down the front of his briefs.


“My weenie!” The mouse cub giggled, flashing his little penis at his father.


“Oh no, little mouse boy weenie! Now, that’s VERY lewd.”


Ralph laughed a good bit at this, pulling his underwear back up. Irving saw the humor in it and joined in.


The little mouse jumped back onto the couch where Irving was laying, climbing back on top of daddy. Irving hugged his little cub some more.


“Of course, you know what the punishment is for mooning and flashing daddy all those times, right?”


Ralph shook his head, still with a dopey little smile on his face.


With a devilish little grin, he held onto Ralph’s upper body rather tight in his hug, but not too tightly. With the other hand, he lowered the cub’s underwear.


“Well, if you don’t want your undies to cover your private areas, pulling them up and down all the time...”


He removed the briefs from the cub’s legs completely, and held them out of Ralph’s reach.


“What’s the point in even wearing them at all?”


Ralph giggled some more.


“Nooo, my underwear!” 


“Nope, now they’re *my* underwear.” Irving took a look at them while the cub playfully tried to reach for them.


“Cool, I’ve always wanted to have cartoon characters on my briefs.”


The half-naked cub freed himself from his father’s grasp, sitting back on his side of the couch.


“Fine. I like having my weenie out.” Ralph stuck his tongue out at his father.


“Oh ho ho, but that’s just the first part of your punishment, little buddy. Now it’s time for a taste of your own medicine.”


Irving got up off the couch, and stood in front of the TV. He then started mock cheering at it, despite nothing going on in the cartoon except dialogue. He then grinned at the little cub, while lowering his own briefs at him, mooning Ralph.


The little cub started laughing hysterically. “Daddy, your butt! It’s so big!”


Irving wiggled his rather large exposed rear end at his son. “How do YOU like it?”


Ralph started to hold his sides as he laughed at seeing his own dad’s nudity. The little penis between his legs started to twitch happily.


“We’re not done, little buddy.”


Irving cheered at the TV some more. “Yaaay, nothing’s going on!”


The chubby mouse turned around, facing his son, and lowered his briefs again, revealing his own genitals, while sticking his tongue out at him.


Ralph was rather surprised this time around. He’d never seen his father’s penis before.


“Daddy, your weenie!”


“Yup. My weenie.” He said, pulling them back up.


Irving laid back down on the couch.


“Hey,” said Ralph, “Now you have to take your underwear off too!”


“Oh?”


“Yeah, that’s the punishment. You said it. It’s no fair if you get to keep your undies and I don’t after you did that.” The little cub reasoned with his father.


“Hmmm, you DO have a point.” Irving shrugged. “I guess rules are rules, right?”


Irving grabbed his own underwear and slid them down his legs, towards Ralph. The little mouse cub giggled excitedly. The stubby penis between Ralph’s legs started to grow.


As Irving removed the briefs completely, he placed Ralph’s briefs in front of them, laying them on his belly, comparing the difference in size. The two mice had rather wide hips, but aside from that, Ralph’s briefs were much smaller by comparison.


“Don’t think I can wear these, no.” Irving said. The daddy mouse took the two pairs of briefs and threw them into the corner of the room, not far from the TV. He felt a hand feeling his furless scrotum. He turned to see his son curiously playing with it.


“What are we grabbing at now, my little clone?”


“Your balls!”


“Oh, we can’t have that now.” Irving said, grabbing his cub again. “Playing with daddy’s balls is not gonna fly in this house, no-siree. Daddy’s balls are sacred.” He noticed the stubby little erection between Ralph’s legs.


“Now what’s this you’ve got going on?” Irving asked, pointing at the cub’s penis.


Ralph smiled.


“My wiener. It’s big right now.”


Irving took a finger, and touched the glans of his son’s penis, pushing it downward. When he let go, it bounced back up, and twitched a handful of times in reaction.


“Look at that. Your ween’s harder than a diamond.”


“Is that bad?”


“What? Naw.” Irving hugged his bottomless mouse cub. “Very intimate parts of our bodies we don’t usually see are exposed right now. It’s natural for a little cub like you to get excited like this.”


Ralph smiled.


“However, it might be a wise idea not to tell-”


“AHEM.”


Beth stood in front of the two half-naked mice with her arms crossed.


“...Mom.”


“What’s going on? Why are you two exposed?!”


A pit formed in the mouse cub’s stomach, and his erection retreated very quickly. He hid his face in his father’s soft chest.


“Let me explain, dear. Ralph and I were getting a little carried away at his cartoons. His underwear got pulled down by accident by the couch as he jumped off it for a minute. We joked about it, and as a little prank he started taking them off again. He was playfully mooning me.”


The sound of Ralph crying through Irving’s chest started to be heard. The father started rubbing the back of his cub’s head with one hand to let him know it was okay.


“That doesn’t explain why YOUR underwear is also off.”


“I was being playful, doing the same thing back at Ralph to see how he liked it. Maybe not the smartest choice on my part, but he was genuinely happy and enjoying himself until you came in here with the fiercest, most intimidating look you could give.”


Beth realized Ralph’s misinterpretation, and let her arms down.


“Ralph, honey...”


The cub lifted his head and turned to his mother. Beth saw the distraught mouse cub’s face, tears running down his chubby cheeks, and teardrops on his glasses.


“I’m not mad at you, sweetheart.”


Ralph sniffled, wiping his nose with his arm.


“You mean it?” He asked, between sobs.


“Of course I do.”


Ralph calmed down after hearing that.


“Irv, this is...I don’t know what to think about this.”


“It’s no big deal, Beth. Ralph and I are just naked. Nothing inappropriate was going to happen between us.”


“He had an erection a minute ago.”


“He was just excited that we’re naked. He’s only naturally curious about my penis. Right?”


Ralph nodded very quickly, still wiping tears from his face.


“Besides, he’s getting to that age where it might be a good idea to educate him about his body. Seeing his old man could be good reference for him.”


Beth sighed.


“What if he tells his friends at school? And how do you know he’s not going to turn out okay because of this?”


“Well, for one...” He turned to Ralph. “This is not something that should be shared with friends at school, buddy. Not even with your best friends when they come visit. Not that any of this is bad, it’s just not something you go around telling everyone. People don’t necessarily want to know about it. You understand that, right?”


Ralph nodded.


“Secondly, I doubt this is going to cause him any sort of psychological harm. Besides, my own old man walked around with his own junk dangling around when I was growing up, and he didn’t care who saw it. I didn’t turn into some serial murderer or psychotically deranged person, clearly.”


Beth remembered the time she left Irving’s bedroom at his parents’ house as a younger woman and saw his father roaming in the hallway in just a tank top.


“I wanted to block that out of my mind, but...you’re right about that.”


The wife put her hands the air.


“Fine. If you two want to roam the house with your private parts dangling around freely, I won’t stop you. But, only on Fridays and Saturdays, since Ralph doesn’t have to go to school the morning after.”


This put a smile on the young cub’s face.


“Yay!”


“You can also take a bath or shower with daddy on those nights, honey, but only if he’s home, and he says it’s okay.”


The young mouse cub turned to his father.


“Sounds fine with me.” Irving smiled.


The little mouse cub hugged his daddy.


“Awww...”


“But, this, what I saw earlier, talking about and touching certain parts, has to STAY educational.”


The two nodded at the mother.


“And Ralph, if daddy says ‘don’t touch’ a certain part of him, you are NOT to touch it. Looking is okay for that part, but not touching.”


“Okay.”


Irving chimed in.


“And if at any point that YOU don’t feel comfortable with this situation, Ralph, tell me, and try to explain what’s wrong as best you can. We can stop all of this whenever you want.”


The mouse cub nodded again.


“Okay then.” Beth said. “...Where’d the both of your underwear go, anyway?”


Ralph pointed at the two discarded pairs of briefs in the corner, by the TV.


“How’d they get there?”


Ralph started to giggle again.


“Heh...they were thrown there.” Irving said, sheepishly.


“Ugh...” Beth sighed. “That’s a great example you’re setting for Ralph, dear.”


Beth went over to the underwear on the floor and picked the two pairs up.


The mouse cub’s giggle turned into full on laughing.


“I guess if you’re not wearing these tonight, I’ll place them back in their rightful homes. Then I’m going back to our bedroom. Try to be a little quieter, guys. Have a good night, Ralph.”


“Night, mom.”


The female mouse walked off, with the two pairs of briefs in hand.


“You okay, buddy?” Irving asked.


“Yeah.”


“You got pretty upset when mom walked in seeing us like this, didn’t you.”


“I was also scared...for you.” 


“Why?”


“I didn’t want you to get in trouble either.”


“No one’s getting in trouble, buddy. Want another hug?”


“Yeah.”


The mouse cub climbed into Irving’s chest again.


“Aww. You’re a sweet little mouse. You’re not doing anything bad, buddy.”


Irving gently rubbed little Ralph’s back. The hand would move upward to rub the back of the mouse’s head, and downward, playfully patting his bare rear end.


“Are you okay with this, Ralphie? Patting your round little butt like this?”


The mouse cub nodded.


“How can I get you to be as happy as you were before mom came in?”


Ralph shrugged.


“I’unno.”


“Well...Daddy said his balls were sacred...but would you like to touch them again?”


“...Yeah.” Ralph smiled.


“Alright, buddy.”


Irving picked up the cub and placed him back on his seat on the couch. The big mouse spread his legs a bit, giving him easier access to his scrotum. Irving’s genitals were proportionally similar to Ralph’s, a rather bigger-than-average set of testicles, and a penis that, when flaccid, had no visible shaft, just an exposed glans that sat on top of the scrotum.


Ralph started touching his father’s balls. He enjoyed rubbing through the ridges, as well as the genital slit holding the two hemispheres together. He was rather amused at the fact that they looked almost exactly like his own.


“Remember though, bud. My balls are just as sensitive to me as yours are to you. Be gentle, okay?”


“Okay.”


“So...we’ll have to keep our nudity more on the educational side, so I’m going to teach you about our private parts. Before I go teaching you about the equipment between our legs, why don’t you tell me what you think you already know?”


The mouse cub thought about it for a minute, while gently rubbing his father’s scrotum some more.


“Umm...this is my wiener.” The cub said, pointing at his penis.


“Okay, what does your wiener do?”


“Uhhh, pee? It lets out pee after I drink stuff.”


“Well, yes, that is ONE of its functions. What else?”


Ralph smiled and shrugged.


“How about a little further down, below your wiener?”


“My balls?”


“Yes, what do our balls do?”


The mouse cub shrugged again. “I dunno. I like touching them, though.” Ralph started to rub his own scrotum with one hand as he continued to rub his father’s with the other.


Irving chuckled. “Don’t we all. You know buddy, we tell you not to play with these things when we’re out in public or when you’re at school, but at home, alone in your bedroom, and a private situation like this, it’s more than okay to touch yourself. It feels good, doesn’t it?”


“Yes!” Ralph grinned at his father.


“I’ll let you in on a little secret, buddy. Daddy loves to touch himself.”


“You do?”


“Yeah. Along with everyone else who has this kind of equipment. It’s natural, buddy. The thing is, it’s really only okay to do in private. That’s why you don’t see me playing with it right now.”


The erection returned to Ralph’s crotch. Irving’s penis, however, remained flaccid, being not as overly sensitive in his more advanced age, as well as uninterested by little cub hands.


“Anyway, your balls DO have a function. However, it’ll be awhile before you learn that function, as your balls aren’t ready to perform it.”


Irving grabbed the tablet computer from the side table next to the couch. He quickly searched for an age-appropriate anatomy education page.


“Now, you’re still on the young side, buddy, so we’ll be leaving a few things out and fill in the gaps when you’re older. For now, we’ll only learn about our male bodies. We’ll learn about female bodies, like your mother’s, maybe in another few years, and puberty in maybe just one more year. Sex will be further down the line.” The old mouse smiled.


“Aww.”


“It’s okay bud. The stuff we’ll learn tonight will be fun too. I’ll make sure of it.”


Irving showed his son the image he found on his tablet. It was a cartoon diagram of the male reproductive system. The mouse cub giggled, and grabbed himself in reaction.


“You like it?” Irving grinned.


“Yeah!”


“The drawing shows all the proper medical terms for everything we’ve got going on down here, bud. I won’t expect you to know all of these words, but the most obvious ones, we’re gonna learn now.”


Ralph giggled.


“So, let’s start with the stuff on the outside. What’s this called?” Irving asked, pointing to a specific area of the diagram.


“The weenie!”


“Heh heh, yes, that’s a cute little nickname for it. Do you know the real name for it?”


“Uhhh, ‘penis’.”


“Very good, buddy.”


Irving switched to a more detailed diagram of the penis.


“There are four main parts of our penises you can see on the outside. There is the shaft, which which is the long tube-like thing.”


The cub looked at his own shaft. He then looked at his father’s penis, which had been flaccid the whole time.


“Daddy, you don’t have one!”


“Hehe, of course I do. It’s just hiding right now. Yours is visible because you have an erection, buddy. When you’re soft, your penis looks a lot like mine, doesn’t it?”


“Yeah.”


“Okay. Next, is a part we don’t quite have much of, the foreskin. In the past, buddy, doctors would always remove this part of our penises when we’re born. That’s why neither of us have one.”


“Why?”


“Well, for a long time doctors would say it’s cleaner and better not to have it. People have started to change their minds on this recently, though, and in many parts of the world, it isn’t removed. Let’s not worry too much about it, though. It’s just this little flap of skin, right here.” The daddy mouse pointed to what remained of his foreskin, and then pointed at his son’s.


Irving moved his finger to the tip of the penis in the diagram.


“Next is the most sensitive part, the glans, or the head of the penis. I’d say this is the most fun part. See mine?”


The older mouse moved his crotch closer to his son. The pink, bulbous penis head was very visible. Ralph smiled, and started to reach for it. The moment his finger made physical contact with it, Irving flinched and moved back.


“Heh heh, while it’s a fun part, it’s not something I really want you touching, buddy. Sorry.”


“Aww.”


“Then the last part, the little hole that likes to stare back at us when we look at it, the meatus, or urethra.”


Irving gently grabbed his own glans and pressed on the top and bottom of it, opening up the hole.


“You do it too, bud. Press on the head of your penis to make the hole open up.” Irving smiled.


Ralph grabbed his own, engorged glans and pressed on it the same way, opening up the hole.


“So, two different liquids will regularly shoot out of this little hole. You already know what one of them is.”


“Pee!”


“Yes. Do you know the proper word for it?”


The mouse cub shook his head.


“It’s called ‘urine’.”


Ralph giggled. “What’s the other one?”


“Heh, you’ll find that one out when we talk about puberty. For now, your own penis will just have urine passing through it. But, before we go on to our balls and other parts, do you have any questions about our penises, buddy? Don’t be shy.” Irving smiled.


Ralph thought about it.


“Why do our weenies get big and hard like mine is right now?”


“Well, when you keep touching it, or think of something that excites it, or see something that excites it, your body is going to send more blood through the veins inside of it. That’s what makes it grow longer and harder, it’s engorged with blood. We call it an erection.”


“Do you get erections too?”


Irving grinned. “Of course I do. You probably won’t see me with too many of them, though.”


“Why does it feel so good to touch? Why do our balls also feel good?”


Irving laid back.


“On the surface of our bodies, everywhere, are tiny things called nerves. They help us to understand how things feel.” The older mouse rubbed his bare arms with each hand. “When you rub your arm with your hands, you feel it, right?”


“Yeah?” Ralph started to rub his own arms.


“And when you rub the palms of your hands together, you feel it even more, right?”


“Yes.” Ralph smiled.


“Well, on our penises, and on our scrotums, are LOTS AND LOTS of nerves, making them VERY sensitive. When we touch these parts, the nerves send a signal to our brain, telling us we’re excited. That’s when the order to send more blood to our penises starts. Understand?”


The little mouse cub nodded.


“Did you get erections as much as I do when you were my age?”


Irving nodded his head. “I did!”


“How come I have an erection when I wake up?”


“There are many reasons for that, the most obvious one is that an erection is very good at holding back urine. It keeps you from peeing in your bed!”


Ralph giggled.


“But your body also likes to give you erections to make sure everything is working properly down there. You might also be dreaming about something that excites you down there and not realize it.”


“So...lots of people wake up with hard weenies?”


“Yup. It’s a normal thing for everyone. Daddy wakes up with a hard weenie too, every morning. Goes away after I pee.”


The mouse cub smiled.


“Okay, let’s move down to our balls. Do you know the correct name for them?”


Ralph shook his head.


“They’re our testicles. We normally have two of them, and like our penises, they can vary in size too. You like how big daddy’s are?”


“Yeah!” The cub grinned. His penis twitched a couple of times in reaction.


“Did you learn about ‘left’ and ‘right’ in school yet, buddy?”


“Uh-huh.” The little mouse held out both of his hands in front of himself, spreading his thumbs.


“This is my left hand! It makes an ‘L’ when I hold it out like this! ‘L’ for left!” Ralph smiled, showing his left hand to his father.


“Smart kid. Correct!”


The little cub grinned at his father.


“Well, like our hands, we refer to our testicles as left and right.”


Irving sat up, and gently poked at his cub’s scrotum.


“This is your left testicle, and this is your right testicle.”


Ralph’s penis twitched in response to his balls being felt by his father’s big, thick finger.


“Now it might seem weird, but when you see another person’s testicles, those names are reversed.”


Irving gently poked at his own scrotum.


“THIS is my left testicle, and THIS is my right testicle.”


Ralph looked at his father, confused. That didn’t seem correct to him.


“My left testicle is on MY left, but appears to be on YOUR right. If we stood side by side, it’d look correct.”


“What do the testicles do?”


“Well, right now, your testicles aren’t doing much except just being there, feeling good to touch. In a couple of years though, they’ll start producing a component of that other liquid we mentioned. Don’t worry about it though. For now, they’re just a fun, squishy little toy beneath your penis. Be gentle with it.”


“Mmm~” The little mouse cub hummed and smiled as he started rubbing his balls.


“Do you know what this pouch holding our testicles is called?”


“Nope!”


“I said it a little earlier, it’s called a scrotum. You know what it does?”


Ralph shook his head again.


“It keeps our testicles at a nice temperature, and protects them. You notice on hot days, your balls get very droopy and your scrotum feels much thinner and smoother?”


“Yeah?”


“That’s your scrotum trying to keep your testicles cool. Right now, it’s kinda chilly in here, so our scrotums are keeping our testicles close to our bodies, and being nice and thick to keep them warm. Our penises are doing something similar - well, at least mine is right now. Your erection is keeping your penis warm with all the blood inside of it, but when you’re not erect, your penis will retreat and appear smaller in the cold, or when you get out of the bath or pool.”


Ralph silently started to rub his father’s scrotum again.


“Any questions about our testicles before we move on to some other of our private parts?”


“Why do we have two?”


“Mostly because we have two of lots of things, eyes, ears, nostrils. But also if we happened to lose one, if one got hurt and stopped working, the other one can still function and do what it needs to do.”


“Why are yours so big?”


“Heh heh. ‘Cause we’re mice, buddy. We’re known for big balls. So are our cousins, rats. Don’t sell yourself short, you’ve got a rather large pair for your age as well, my little clone.” Irving grinned.


“Will mine be as big as yours when I’m as old as you?”


“Very likely! Any more questions?”


“No.” Ralph smiled.


“Okay. That’s it for our reproductive organs, but there are other private parts we can learn about.”


“Our butts?”


“Our butts, yes, that’s one.”


Irving shifted on the couch to reveal his rear end.


“They’re technically called buttocks, but ‘butt’ is fine. You can go ahead and touch the cheeks of my butt, buddy.”


The little mouse cub smiled, and reached at the cheeks of his father’s rear end. He lightly started rubbing them.


“They’re not as sensitive as our penises and scrotums. Not too many nerves back there, I can barely feel you rubbing them. They are still fun to pat and rub, though, because they’re so warm and soft. I’m okay with you rubbing my butt.”


Ralph looked down to see Irving’s scrotum dangling underneath his rear end.


“Hehehehe! Your balls are still showing.”


“That they are. Like I said, we’re known for big balls.” Irving shifted back around.


“And, between our cheeks is what’s called an anus.” The daddy mouse leaned back, to allow for his rear to be visible again underneath his genitals, and parted the cheeks, revealing his pink hole.


“It’s mainly just the other end of our digestive tract. Some people like playing with it. I don’t really, though.”


Ralph giggled. He started to reach for it. When Irving saw this he closed the part back up.


“Another part I’d rather you not touch, not because it’s super sensitive, but for cleanliness reasons. I think it’s too dirty, especially inside.” The mouse daddy smiled.


Ralph parted his own cheeks, trying to look at his own anus.


“I can’t see it!”


“It’s hard to look at your own. Here.” Irving grabbed a small mirror from the side table’s drawer, and placed it in front of his son’s rear end. “See? That cute, pink little hole is your anus.”


Ralph grinned. “Yay!”


The little mouse cub watched as the hole clenched at the same time that his penis twitched.


“Why did it close when my weenie went up?”


“Because your penis and anus use the same muscle in your pelvis. That one’s a little complicated, so we won’t get into that.”


Ralph smiled at his father.


“One of my favorite parts is between our scrotums and our anuses.”


Irving lifted his scrotum away for a moment.


“This bit of flesh is called our ‘perineum’. It’s not exactly a private part, but it’s not one we normally see on other people, since it’s surrounded by parts that are private. You can touch this part on me, buddy.”


Ralph reached at the featureless patch of flesh where there still wasn’t much fur, gently rubbing it.


“Like it?” Irving asked.


“Yeah.” The mouse cub smiled.


“Okay, and last, but not least. A part you do see of mine every so often, like when we go to the pool...”


Irving lifted up his shirt.


“Our nipples.”


Ralph giggled. “Those aren’t private!”


“Well, not for us males. They are kinda private on females. And for us, they’re still a sensitive part. C’mon buddy, lemme see yours.” Irving smiled.


Ralph grinned and lifted his own shirt, revealing a rather large set of nipples of his own for his age.


“Big nipples, just like your daddy.” The father said, matter-of-factly.


Irving then picked up his son, and laid him on his exposed belly.


“You can touch these too. Be gentle.” Irving smiled.


The little mouse cub gently grabbed at the two nipples, rubbing the soft, pink, furless flesh.


“What do they do?”


“On us? Absolutely nothing. They’re just there for fun. We’d look kind of weird without them, don’t you think?”


“Yeah.” Ralph smiled.


“Okay,” said Irving. “Now, it’s time for a little test.”


“Awww.”


“Don’t worry, it’ll be a fun test.” The mouse dad placed his cub back on the couch again.


“I’m gonna tell you to touch a private part on yours or my body with your finger. Let’s see how many you get right.”


“Okay!”


“Let’s start then...touch your shaft.”


The little cub thought for a second, and correctly touched the shaft of his penis.


“Correct! Now, I want you to touch your scrotum.”


Ralph smiled as he grabbed hold of his little sack.


“Very good buddy. Next, touch MY right testicle. Careful, might be a trick.” Irving winked.


Ralph gently poked what he saw as the left half of his father’s scrotum.


“Smart! You saw right through the trick. Next, touch your perineum.”


The mouse cub moved his scrotum out of the way and poked the blank patch of flesh between it and his anus.


“Very good. Next, your meatus.”


Ralph pressed his glans, opening his urethral hole, and pointed to it. “Is this it?”


“Yes! Now, your left nipple.”


The little mouse lifted up his shirt again and touched the correct part. Irving nodded.


“Okay, one more...touch...hmmm...my glans.”


Ralph reached for it, but hesitated, giving his father a weird look. Irving realized what was wrong.


“Oh, heh. It’s okay bud, I’ll let you touch it now.”


The mouse cub smiled, and pressed lightly on the head of his father’s penis.


“A-plus, one-hundred percent. You did great, bud.” Irving grabbed his son and hugged him yet again. He felt his son’s erection pressing against his belly as he held him. The pressure of the two bellies squishing the little penis made it twitch every few seconds. The father gently patted the cub’s rear end for a bit.


“Daddy...” The cub grinned. “...play with my weenie.”


Irving smiled. He shifted his son on his belly, freeing Ralph’s stubby erection. He very gently teased it and his scrotum with his fingers, rubbing through the scrotal ridges, gently tickling the underside of his glans, and playfully pressing the head down with a finger to watch it bounce back upward. Ralph looked at these actions and smiled. He giggled whenever it tickled him. This went on for a good minute or so. Irving took care to not stimulate his son too much, backing away a couple of times, letting the cub’s genitals rest.


“Daddy?” Ralph asked, quietly.


“Yeah, buddy?”


“Can I play with your weenie? Please?” Ralph smiled at his father.


“Aww...it’s so hard to say no to such a cute face like that...okay bud, you can play with it, just this once, since I played with yours.”


The look of genuine happiness on the mouse cub’s face made Irving grin. The mouse daddy let go of his son again, allowing Ralph access to his genitalia.


“Remember though, buddy. Be gentle.”


Irving watched as his son playfully rubbed his scrotum some more, working upward to his penis. When he finally got to it, he gently moved it around. It couldn’t move much, since it was essentially just his flaccid glans, but he tried playing with it in a similar way, pressing it downward, tickling the underside. Irving’s own penis was still not interested in little hands teasing it, so it remained soft.


“You really like daddy’s equipment, don’t you.”


Ralph nodded. “It’s like mine, but bigger.”


The little cub pressed his scrotum against his father’s, pushing them to the point in which the cub’s glans made contact with his father’s.


“What are you doing, little goofball?” Irving asked, playfully.


“Making our weenies kiss.”


“Aww, buddy. Adorable. My weenie’s happy to kiss yours.”


Irving made his own flaccid penis twitch on his son’s.


---------------------
Irving carried his tired mouse cub to his bed. When he placed him under his blankets, Ralph stretched and yawned.


“Daddy?” He asked, removing his glasses.


“Yes, buddy?”


“Can we have our weenies out tomorrow night too?”


“Sure, buddy. After our bath.”


“Okay.” Ralph smiled. “Can I play with mine before I fall asleep?”


“Of course you can, goofball.” Irving grinned.


“Okay, good night, daddy.”


“Good night, bud.”


The mouse dad pecked his son’s chubby cheek. The little cub pecked his father’s cheek in return.


Ralph watched as his bottomless father left his bedroom.


Irving turned off any remaining lights in the house before returning to his own bedroom, to find Beth, still awake, reading on her tablet. Like her husband, she lacked any sort of underwear underneath her transparent nightgown, which wasn’t covering much.


“I see the ‘no underwear’ look has become a trend in this house.” Irving grinned. “I’m very okay with this.”


Beth lowered her nightgown.


“It’s not an invitation, Irv.”


Irving chuckled, as he laid on their bed, next to Beth.


“What did you do with him, hon?”


“Ralph? I wanted to start a little slow, so I didn’t talk about sex itself with him, or anything about the woman’s body. I mainly taught him the proper names of what he sees every day, and their basic, non-sexual functions. I also answered any questions he had about himself.”


“Like?”


“Like why he wakes up with an erection, why it feels so good to touch. And I told him the truth as best I could in a way he could understand.”


“Nothing inappropriate?”


“Of course not, sweetie.”


“I dunno, hon. I feel like you might be being a little too nice and open to him.”


“Elizabeth, I spend all day yelling at my employees at the office. I’m so much of a hardass at work, the last thing I want to do when I get home is more of the same to you or Ralph. Especially not Ralph. He’s a sensitive little boy, and I don’t want him to see the monster I am at my job. I’ll be firm if I need to, but I’d never get angry at him just because he wanted to flash his little dick at me. He’s such a good boy otherwise, even if he might be a little perverted at times.”


Beth was silent for a moment.


“I just...don’t want to be seen as the mean parent, either. I scowl, I cross my arms at both you and Ralph, I’m the only one who gives orders. You get to be the fun parent and spoil Ralph, while I’m the police who has to take all the nice things away.”


Irving inched closer to his wife.


“That may be so. But you definitely keep us grounded, hon. It makes you a good parent.”


Irving paused.


“I’ll try to be a bit more assertive with Ralph with other things, so you can ease up and be a fun parent to Ralph at times.”


The mouse dad smiled.


“And who knows, down the line, if we have another kid, a girl, we can do a complete role reversal. I’ll be the police, and you can spoil her with fun stuff.”


Beth looked at Irving and smiled.


“The two children I have to deal with are already more than a handful, Irv.” 


Irving grinned.


“I guess if I’m also a child, I can do this.”


Irving turned away from his wife, and started to bump his bare rear end into her.


“Bump. Bump bump bump. Bump bump bump. Bump bump!” He said with every bump.


Beth started to laugh.


“You ARE a child, Irv. I can see why you were so open to him. Like two little boys comparing their penises.”


“I won that contest, by the way.” Irving winked.


“You sure about that?” Beth grinned. “Ralph seemed to have a good inch or two on you with his erection.”


They both laughed. Beth continued.


“Really...that looked like a pretty thick hardon he had just by seeing your penis. D’you think we might have a little homosexual on our hands?”


Irving shrugged.


“Who knows. He’ll still get the same amount of love from me if he turns out that way, though.”


“That’s good to hear.” Beth pecked her husband on cheek, and playfully hit one of the cheeks that was bumping into her.


Irving laid back on his side of the bed, removing his glasses and placing them on his night stand. He rested one arm behind his head while the other pleasured himself. He quietly masturbated as Beth continued reading. Not long after, Irving shot his semen across the bed. Beth saw this in the corner of her eye.


“These are new blankets, dear.”


“Now they’re OUR new blankets, hon.” He responded, giving her a peck on the cheek. Beth chuckled at this.


“Good night, Beth.” Irving said, getting underneath the blankets.


“Good night, Irv.”


Beth turned off her tablet and got under the blankets herself, shutting off the lamp on her nightstand. The two fell asleep to the sound of the heavy rain hitting their window.