It all started with an innocent comment on the way home from school.
	“You're so lucky to have a new sister,” Aaron sighed, “it must be so exciting.”
	Thomas chuckled, looking over at his friend. “it gets really loud sometimes,” he replied, “She sometimes she wakes up in the middle of the night and cries until mom calms her down. It's not really that exciting.”
	The pair of porcine cubs had known each other since kindergarden. Aaron saw Thomas drawing pictures of spaceships on the sidewalk during recess and making little 'pew-pew' noises as they shot down imaginary aliens. Aaron started drawing beside him and the two had been inseparable ever since.
	“Does your mom make you hold her n'stuff?” Aaron asked, shaking his mop of hair away from his face. “Do you have to feed her? Give her baths? Change her diaper? Is it a lot of work?”
	Tom shook his head. “Mom and dad do that kind of stuff” he answered, “but I get to watch if I want. It's pretty cool!”
	“Do you ever see her . . . private parts?” Aaron whispered, looking around nervously.
	Tom nodded. “A few times,” he replied, “Usually when they're changing her. It's so weird, nothing like the book!”
	“The book?”
	Tom nodded again, excitedly. “They got me book just before Beth was born about where babies come from. They sat me down and we had a big long talk about it. Then I took it to my room and read it again under the covers. There were so many naked pictures!”
	Aaron shuffled uncomfortably as he tried to keep up. He liked hearing Tom talk about naked girls, but it felt somehow . . . wrong, like his parents were going to get mad if they heard them talking about it. 
	Tom suddenly turned around and grabbed Aaron by the shoulders, his stiff hair bobbing off his head. “Hey! Wanna come over? We can play Spaceman, You can meet Bethany and I can show you my book!”
	“Uh-” Aaron stammered.
	“I'll go ask my parents right now,” Tom interrupted, grinning ear to ear before he practically jumped away and turned onto his street. “Call me!” he yelled behind him. Aaron waited until he was out of sight before he quickened his pace home.

	To his surprise, it was Tom that phoned HIM almost as soon as he got in the door. His mother handed him the phone with a smile on her face. “he seems excited,” she grinned, “You can go play as long as you're back in by dinnertime, okay?”
	“Okay mom,” Aaron replied quietly as he held the phone under his ear.
	“Aaron!” the voice crackled, “C'mon over! My parents went out to see a movie before dinner and left me to take care of Bethany for a while! Wanna meet her?”
	Aaron's heart skipped a beat. He tried not to look nervous in front of his mother, so he turned around to go upstairs to his room. “You sure about this?” he whispered, “Won't we get in trouble?”
	“No way!” Tom shot back, “They'll be gone for hours!”
	“O-okay,” he replied, his heart feeling like it was going to burst out of his chest, and quickly hung up. “I'm going to Tom's,” he announced, deliberately avoiding eye contact as he rushed out the door.

	Tom answered the door and quickly waved Aaron inside. “She's in the nursery,” he announced at a whisper, lets go!”
	The nursery was a calming pale pink, the floor was littered with all sorts of baby paraphernalia: brightly-colored soothers, rattles, mobiles, blankets and plastic toys drew the eye to all corners of the room, contrasting brightly with the off-white crib and dresser. Tom grabbed a pillow from his own room and then leaned over the crib, cooing to his baby sister as he lifted her out and set her down on the pillow so they both could see. She was a tiny little thing, only a few weeks old. Her porcine nose as button-like, and her ears and eyes seemed too big for such a small body. She only fussed a little when her older brother tugged the first arm out of her onesie, flexing her arms and legs randomly like she didn't quite know how to use them.
	“I've never seen a girl's private parts before,” Aaron admitted, “Not really. You sure this is okay?”
	Tom nodded, continuing to undress the tiny cub until she was clad in nothing more than a diaper. “It's fine,” he replied, “It's not that big of a deal. I've seen them before.” He undid the adhesive straps on the diaper and let it unfurl, revealing baby bethany entirely.
	Aaron just stared, shuffling uncomfortably. “That's so weird,” he said, watching Beth aimlessly kick her legs, “it looks like a little 'V' with a line through it.”
	“It feels weird too,” Tom replied, “Like it's all puffy. See? Look!” He reached down and poked between his baby sister's legs with a finger to demonstrate. 'It's okay, go ahead. She won't mind.”
	Aaron nervously obeyed, stroking Bethany's cleft with a single finger. “it's so soft,” he whispered.
	“It opens up, too, and goes all the way up inside her,” Tom said, watching his friend molest his sister.
	“Inside? Really?”
	“Yeah!” Tom nodded, “The book says that's where boys stick their thingies when they want to make a baby. I can almost get a whole finger in there!”
	“No way!” Aaron challenged. He tried to sound disgusted by the idea, but a large part of him wanted to see his friend prove it.”
	“Bet you a dollar,” Tom replied. 
	“No way,” Aaron repeated, “What if you hurt her?”
	“It doesn't hurt, watch!” The older boy pulled his sister into his lap, using one hand to hold her leg up so that his friend could get a clear view. He rubbed her lower lips once and then slipped his finger inside up to the first knuckle. Bethany fussed a little, but stopped short of crying out. “She's warm and sticky inside,” he said, “If you rub her a bunch then she gets all slippery and it's easier to get further in. I got way further last night before I tried putting my thingy in.”
	“Y-you put your thingy . . . in there?” Aaron stammered, transfixed.
	“The book said that it was supposed to feel really good, but it was sometimes really hard because guys' thingies get big when they see a girl. So I tried it out.”
	“and?”
	“It was really cool. As soon as I started touching her my thingy went all hard. It took a few tries to get it inside, but once I did it felt weird. I got all tingly and it felt like I had to keep going and get further inside. But then Beth started to cry and I pulled back out, and that's when I felt REALLY good. It was like I had to go pee only not. My thingy was pumping up and down and some clear stuff came out. I had to wipe it all off before mom saw us.”
	“Did you get in trouble?”
	“Nah, she went pee after so mom didn't notice. But I practiced again that night, using my hand. Didn't feel nearly as good the second time – kinda hurt a little, but still felt really good.”
	“Good like what?” Aaron asked, tilting his head and twitching his ear. 
	“Like tingly and throbby and . . . I can't really say. You have to try it!”
	The younger cub shuffled nervously. He could feel himself pressing up against the inside of his briefs, rubbing against his jeans. “I don't know,” he replied shyly. 
	“It's way better than playing Spaceman,” Tom insisted, “But you gotta take off your pants.”
	“But-”
	“If I do it, you have to do it.”
	“But-”
	“My parents aren't home,” Tom insisted, already taking off his shirt, “No one's gonna know!”
	It wasn't the first time the pair had seen each other pants-less. They were caught long ago behind the elementary school playing the “show me yours” game, they'd been swimming together several times, and had more sleepovers than they could count. No one knew Aaron better than Tom, and vice versa. Still, Aaron hesitated. 
	“Your turn,” Tom grinned. He was completely naked now, standing over him and holding his equally-nude sister in the crook of his arm. His member was bigger, just like he said. It made Aaron feel better and a little less embarrassed now that he knew that getting bigger down there when he saw someone wasn't something to be ashamed of.
	“You sure?” he asked one more time, reaching to pull off his shirt. 
	“Just do it,” came the swift reply, “Who's gonna find out? I'll get her ready for you!”
	It was hard for Aaron to look like he wasn't in a hurry to join in. It was like waiting for christmas morning, knowing something amazing was going to happen but having to pretend to be asleep for just a minute or so more. Tom certainly gave him a good distraction, rubbing his privates against those of his sister's, slipping along those chubby little lips and even pushing them apart, making them glisten with the 'clear stuff' he mentioned earlier. Bethany didn't even seem the slightest bit annoyed with being handled in such a way – she was unusually calm, cooing to herself.
	“Do you do it standing up?” Aaron asked, his member bouncing upwards as he pulled down his briefs.
	Tom shook his head. “I almost fell over when I tried the first time. It's easier lying or sitting, like this.” He knelt down on the ground, holding Bethany like she was standing before he turned her around and plopped her on his lap. “We did it like this the next time, against the wall. It was a lot easier. Are you ready for her?”
	Aaron didn't answer right away, but pushed himself back against the pillow Bethany was resting on. His thingy was just as hard as Tom's. “I dunno . . .”
	“C'mon, just take her,” Tom insisted, leaning forward and holding his baby sister against his arms, pulling her legs apart to let those glistening lips gently slide open. “I'll hold her while you get ready, then you can take her. Just bounce her up and down a bit, like mommy does with her knee when Beth cries.”
	The sound of his own racing heart filled Aaron's ears. His private bits were literally twitching with excitement. Finally, he relented. “O-okay,” he agreed, reaching down to grab his member and aim it between the baby cub's legs. Tom lowered his sister down gently until the tip of his friend's prick was just touching his sister's labia. 
	“Rub it back and forth a bit,” Tom suggested, pushing Bethany down further. 
	Aaron felt like his heart was going to jump out of his chest. Each time his exposed skin touched hers it was like lightning striking every part of his body at once – only good. He couldn't describe it any other way.
	“Gah!” Aaron grunted as the head of his prick slipped past Bethany's lips, the tightness inside pulling back his foreskin and scraping against the most sensitive part of the little boy's body. What he felt a second ago was intense, but this was a hundred times more so! He pushed his hips upwards, trying to get further in, but it was like someone closed a fist around his privates. Bethany screwed up her face and clenched her firsts like she was about to start bawling, but Tom calmed her down with a pat to the head and a gentle voice. 
	“Here,” Tom insisted, “You take her, I'll watch.”
	Aaron was too stunned to argue. His barely-pubescent brain was still trying to process all the things that were happening to his body. He reached out on command and took baby Bethany under the arms and pulled her up slightly, shivering as her little body shot sparks of pleasure through the young boy. 
	Tom watched with a giddy grin on his face, using his hand instead of a girl like the book told him. He smeared the clear, slippery fluid around his member with his hand and started stroking up and down his length, trying to match the actions of his friend. Whenever Aaron pulled the baby up, his hand stroked towards the tip. Whenever he pushed down, his hand slid back towards the base. It didn't take more than five or six strokes before Aaron shifted in his seat and clenched his eyes. 
	“it feels like I have to – Aah! Woah!” His eyes shot open and then clamped shut again as he gripped Bethany's sides hard and bucked his hips quickly up and down. He couldn't seem to stop, even as Bethany threatened to let out a uncomfortable squeal! “Ugh-wow! Aah-hah! Tom, I think I – oof, I think I peed . . .”
	The young boy lifted the baby girl up, and watched the clear-ish, thick fluid drip from between her legs. He was still trembling and throbbing, and all of a sudden felt very tired. Tom quickly took the malcontent from him and rapidly stroked himself to completion, pushing the head of his dick right where Aaron came only moments before and blowing his cub-sized load between her legs. He let her cry for a moment while both boys took heavy, exhausted breaths before he picked her up and put her diaper back on over the mess they made. 
	“Mom just throws away dirty diapers,” Tom grinned, “She doesn't even look at them. I've watched. She'll never know!”
	Aaron wanted to believe him. He was laying on the floor, looking at the ceiling. He didn't even care that he was naked anymore. He was just . . . happy. Even Beth stopped crying as soon as Tom started rocking her. “That . . . was awesome!” he slurred, scooting back against the wall and propping himself up, “I like this game!”
	“I told ya!” Tom grinned, giddy as ever. “Way better than Spaceman. Hey, think you can stay over this weekend?”