“Good boy! Your catches are becoming more precise each time!” The girl said, while leaning down to get the frisbee out of Bolt’s mouth, which who was wagging his tail like crazy. “We’ll play more another time, boy. I… I still gotta wash the dishes before mom comes back home! Oh my gosh, I totally forgot about it!” Penny gasped, before running back inside almost as fast as Bolt could run in his own movies.

The young white German Shepherd then simply nodded before turning around and flopping down on his belly, just appreciating the view from his new house after both him and Penny gave up on making movies to live a normal and peaceful life at the meadows. From time to time he’d remember about his fictional adventures, though. Running at super sonic speeds, melting stuff with his own eyes and the Super Bark… Oh, the Super Bark. Being able to create a massive shockwave that blows everything around you to the air only by barking just once was an amazing thought. At the front yard, he used to watch cars driving by, people walking, and sometimes even other dogs or cats. But on this particular day, he saw something happen that he had never seen before, and that got him really curious. After the event, he quickly got up and started looking out for Mittens, who had teached him about so much stuff that he just -knew- that she’d know what exactly was that.

Trotting towards the backyard, he sniffed around for the female cat while barking out her name from time to time. Mittens’ ears suddenly perked up after hearing that familiar sound, which made her look downwards from the branch of a tree, where usually she’d take naps at. She yawned widely, flashing those extremely sharp fangs before climbing down the tree and sitting down.

“I’m here, dog. What’s all this fuss about? I was getting ready to take my fifteenth nap.”

Bolt’s ears suddenly turned around at the sound of her voice and he came quickly towards her, softly wagging his tail. He was still kind of a puppy, after all.

“Oh, hey there Mittens. I was... looking for you.” —  Said the dog, who was visibly a little bit nervous.

“Well I’m here now. What do you want this time? I’m not complaining, but… I was going to take a nap, so I’m kind of sleepy still.”

“Umm… W-Well… It’s something I saw happening on the street a while ago between two other dogs that I’ve never seen before… And that got me really curious.”

“And what was it, exactly?”

“I couldn’t see that many details from the distance I was, but… For some reason, from all I can remember, two dogs were doing something funny, yet something that I’ve never seen any other dog do before. It looked like they were playing leap-frog, but the one on top would never jump over the one on the bottom. And he was doing a weird movement with his hips, moving them back and forth quickly. I think that they got really tired though, because they both were panting so hard… So, if that’s a new game, I’d love to know about it! ...And that’s why I was looking for you. You must know everything about these games.”

It didn’t take long for Mittens to figure out what actually Bolt saw. He didn’t see two dogs playing a new type of “game”, he in fact watched two dogs mating, having sex, screwing. With that in mind, the cat also realized that since they both began living together after she teached him most of the things about what a dog does, she still had never teached him about sex. Sure, Bolt has already been seen with his “lipstick” out, but he never actually payed attention to it. He never got to know what those fuzzy, round and big balls between his hindlegs were for, nor why sometimes he’d catch himself idly rubbing them with a forepaw and for some reason being able to extract pleasure from them. Also, there’s the fact that currently, there wasn’t any male cat around to mate with Mittens, and lately she’s already been craving for a penis being inside her as quickly as possible. With that in mind, she quickly realized something.

Bolt is a male dog. And although she had never actually seen his penis entirely, she certainly knew how much thicker and bigger a dog’s penis is, compared to that of a male cat. And not to mention how much they’re able to ejaculate with those huge testicles, along with that special feature that every other cat and most animals envy: the knot.
She quickly grinned to herself, already knowing exactly what to do in this situation.

“Ahh, I indeed know that game too. It’s… a new one. But before beginning, we have to get you ready first. Could you turn aside for me?

“Uh… Yes, sure.” — The dog then turned on his side for her, a little bit curious.

“Good. Now to get you ready then… I’m sure you’ll enjoy it, don’t worry.” — Mittens said, reaching forward with a forepaw to gently rub Bolt’s belly, which made the big pup kick his hindpaw a bit against the ground, panting happily. But it didn’t take long for the cat to slowly move her forepaw to the side, grabbing on his plump sheath firmly. Bolt suddenly opened his eyes widely, looking back at the feline.

“H-Hey! What are you doing?”

“I’m just getting you ready, dog. Why do you seem so surprised?”

“Well I wasn’t expecting you to… touch my privates like that. Also, isn’t it a bit gross? Like, you know that there’s where my pee comes from, right?”

“You’re still too naive… Have you ever seen your own penis?”

“Well yeah. It’s what you’re touching right now, silly cat.”

Mittens rolls her eyes in a painfully slow movement.

“Listen, dog. This is called a ‘sheath’. Your penis is actually inside of it.”

“But… But Penny told me it is my penis.”

“Ah, c’mon mutt. Do you really think a young girl like her would know anything about our genitals? Besides, I’ve seen it before in other dogs lots of times, so now just relax and let me continue, okay?”

“Well… Okay then. I just don’t see why would you need to use my penis for this new game. I don’t even feel like peeing right now.”

“But I’ll make you “pee”... And you’ll love it.”

The white GSD just shrugs and returns to looking forward. As Mitten resumes her work, she begins moving her forepaw back and forth slowly at first, while still firmly holding Bolt’s sheath. It didn’t take long for his penis to begin sliding out of it, getting thicker and harder as the cat moves her forepaw faster at the same time. The new feeling suddenly makes Bolt quite confused at first, but he begins to really enjoy it, and due to his instincts, his hips begin bucking against her forepaw quickly.

“Hnnngh… W-What’s happening?!... ohhh… I can’t control myself!... Why am I d-doing this?... And…. w-why does this feel so g… good?...”

“Dooooon’t worry, mutt. This is called getting you ready, remember? I’ll be finished soon.”

Happy to see that it was working so well, Mittens then tries to push Bolt’s sheath back carefully to allow his knot to slide out of it as well. She holds tightly on the tip of his sheath and slowly pushes it back across with the dog’s erection, and along with his thrusts, she manages to push it all the way back, allowing his knot to slide out easily. She stops moving her forepaw and just pinches tightly on the root of his bulb by using two toes, which rips out a loud moan from Bolt, making the dog squirt out a long stream of sticky pre.
Surprised with such an intense feeling, he desperately looks back between his own hindlegs, yelping loudly at what he sees.

“Gaaahhh! What have you done to me?!”

“Whoa! Relax, dog! That’s what actually is your penis.”

“...is it? But… It looks like I’m injured, or something. It’s so red and… What’s that huge ball at the base? Why is it swollen? And why did I pee already? I didn’t even feel it…”

“Bolt, calm down… Relax, boy. Let me explain.
Alright, so: all of this is your penis. The huge ball at the base is called a knot. You’ll know its purpose soon. And it is swollen because you’re excited sexually. That’s also why your penis feels so hard. Aaand no, that’s not pee. It’s just a ‘special’ liquid to help making penetration easier…”

“Penetration?”

The female cat sighs. “Look, you’re already ready for the game. Now let me get in position.”

“Uh… alright then.”

Knowing that Bolt’s instinct would surely take over his naivety, Mittens didn’t lose time. She got up and padded forward until she was right in front of the dog, lifting her fuzzy black tail to expose her tight tailhole, along with her moist feline vagina as she looks back at him.

“It’s very simple. Stand over me and slowly push your penis inside my lower entrance. The moist one.”

“Uhh… Are you sure about that? I really don’t think I’m supposed to do that. What if I end up peeing into you?”

“For Feral’s sake dog, you won’t pee, believe me. I’m sure that you’ll love it as well. Just… Allow your instincts to take over you, okay? Don’t hold yourself back. Even that it seems weird, just let your instincts take over your body and will.”

“I can try… I just still don’t see the point of this game.”

With that said, Mittens was almost giving up. The dog was just too naive, and she still wouldn’t believe he didn’t even know what his penis really was. Though, out of the nowhere, she snapped back into reality as a sudden and firm lick ran across her wet pussy. And then another one. And another one, and a few more. Just as she ordered, Bolt began following his own instincts and kept licking her vagina gently, even though he was still curious. A few moments later, his hips started bucking again, making his stiff erection bounce between his hindlegs, though it surely wasn't relieving a growing itch that he was felt getting stronger and stronger in his penis. Meanwhile, Mittens had her eyes half-closed, panting softly at the wonderful feeling of those licks, loving how dogs could lick her without having those annoying barbs that felines have. But those licks were soon interrupted, with Bolt closing his eyes and raising his head, panting softly as his hips kept bucking, humping the air.

“Hnnngh… I'm s-sorry Mittens… I can't control myself… Huff… Huff… And I'm not feeling very well… I'm feeling very uneasy, and there's a weird feeling on my penis that I can't get rid of…”

The female knew what that meant, of course. Bolt had never ejaculated in his whole life, and now that he finally had his sexual awakening, he surely needed to orgasm, otherwise he'd become so agitated and stressed that Penny and her mother would most likely take Bolt to get neutered. And Mittens would really dislike that, since as said before, Bolt was the only male around that would mate with her. The other male dogs would most likely chase her, after all she's a cat. So she'd do anything to prevent Bolt from losing his precious testicles.

“Don't worry, it just means you're ready to play the game. Now, stand over me and push your penis inside my lower entrance, please.”

Barely being able to think straight, Bolt padded forward until he was standing over the cat. He lowered his hips a bit to try and find her dripping pussy, in which he quickly did. Feeling his tip touching her vagina makes him shiver in pleasure, so with a firm buck of his hips, he manages to push almost all of his length inside her, making Mittens gasp in pleasure. The sudden tight and wet feeling of her vaginal muscles clenching around his erection makes the dog moan out loudly, and at the same time, begin to hump her as fast as he could.

Mittens couldn't believe in how hard Bolt was mating her. For his first time, he was thrusting really deep and humping her intensely, so much that she had to extend out her claws and shove them into the ground so that he wouldn't push her forward. Bolt didn't know very well what was happening, but the feeling was so excruciatingly good that he didn't dare stopping to ask questions. Soon he begins squirting his hot and gooey pre deep into the cat, allowing for the wet sounds of their mating to intensify, and at one point he spreads his hindlegs, letting his big balls slap against her crotch again and again, only adding to his own pleasure. Being his first time, he surely wasn't going to be able to last for much longer, so in order to give him an orgasm he surely deserved, Mittens begins pushing herself back against his thrusts, against his knot, pushing back over and over in order to slowly spread her vaginal lips. She could feel it carefully sinking into her more and more, spreading her wet lips apart more than she thought they would be able to, and the tightness only made Bolt groan and try to thrust harder, which in fact helped Mittens to finally have him push his whole bulb inside. 

Both meowled and moaned as Bolt’s knot finally got stuck inside the cat's tight entrance. Even unsure of why this happened, the pleasure was growing too quickly and too much for Bolt to stop humping, and at this point he was already humping as hard as he could, panting heavily. Suddenly, a very strong feeling began growing at the base of his penis, and inside Mittens, his knot began to swell up quickly, throbbing and throbbing more until it became huge.

“Hhhnnnnggg… M-Mittens… Ahhhh… I think I need to pee really hard, but I c-can’t pull out for some reason!... I'm gonna… hahhhh… I'm g-gonna…
*GASP!!*”

Mittens’ eyes opened widely at the same moment Bolt gasped and soon released out a really loud, lengthy and throaty moan, folding his ears back and lifting his muzzle high in the air, closing his eyes tightly. Suddenly, a really strong and thick torrent of dog semen shot into her into a single and continuous stream, lasting for almost five seconds before it slowed down, though it wasn’t long before shorter, but still very strong spurts followed. Along with his throbbing penis, the cat could also feel each time Bolt’s urethra pulsed inside her, bulging while his gooey semen quickly ran across it before being shot through the hole on the tip. Outside, Bolt’s tailhole could be seen clenching visibly at each time he ejaculated another hot stream, and his big balls were now tightly clenched against his crotch, a clear sign that he was ejaculating. His fluffy tail was also flagging up and down due to his PC muscle contracting to allow him to ejaculate. In other words, there was no doubt in the air: Bolt had finally ejaculated for the first time in his life. So much, in fact, that even with his large knot lodged inside the female feline, he kept ejaculating so much that soon all of that cum found its way around his knot and began squirting backwards across the grass, quickly forming a pool underneath and around their hindlegs. At this point, Bolt could barely move. He had never felt such an intense feeling like this before, and at the same time, he couldn’t be happier to have discovered this. Even not thinking straight, he already knew something: he would trade that celebrity life he had before in a snap, in exchange for a life of mating and ejaculating everyday, if only he’d known that before.
Mittens was about to pass out. She couldn’t count how many times she orgasmed there. Bolt was such a beast! As soon as she finished her first orgasm, she quickly got bought back to it. Her tight muscles kept milking Bolt’s erection for all it’s worth, only helping the dog ejaculate harder and deeper inside her. As soon as the second orgasm ended, that thick length throbbed hard again, stimulating her whole passage until she found herself orgasming again, and again. She just loved feeling Bolt’s urethra pulse so hard and so much, knowing that each one of those pulses meant another thick, hot and gooey load Bolt spurted inside her.

Soon, after almost ten minutes ejaculating, Bolt finally found himself beginning to calm down as his ejaculation slowed down to a halt, only dribbling his semen deep inside the cat. Both animals could barely move, as this was Bolt’s first orgasm, and surely one he’d remember for the rest of his life. Mittens’ eyes were closed by now, but she was still awake. She’d also never forget this moment, having orgasmed so many times in just a single mating. Now she knew for sure that she’d do whatever it takes to prevent Bolt from being neutered, because if there’s something really ‘super’ about this dog, was his orgasm and ejaculation.

Bolt slowly fell to his side on the ground, bringing Mittens along with him. Both were laying in their own mess, as that puddle of semen has become larger than the two of them at this point. After a moment of panting and huffing, the white German Shepherd finally was able to speak something.

“Ahhh… hahh…… mmph…. S-So… W-What just… h… happened?... That definitely doesn’t l-look like pee… huff…”

“I g-guess it’s time for you to know the truth, dog… huff… This isn’t a game, actually… This is called mating… We just had sex.”

“Mating?”

“Yeah… This is what we do to reproduce, and have puppies, kittens… But we can also do it just for the pleasure it brings…”

“I see… But tell me… *he sighs in pleasure and relief* ...what is this white goo that I released? And why can’t I pull my penis from you?”

“The goo is called semen, or just cum if you prefer, dog… It’s the special liquid that allows females to get pregnant. As for why you can’t pull out, it’s because your knot — remember, that bulb? — It got stuck in me, so that most of your semen can stay inside. We’ll be like this for a while until it softens up, so that you can pull out.

“Gotcha… But, there’s just something else I don’t know about. Where did all of this cum thing came from? I didn’t feel like I was peeing, but yet it was… just amazing. It was WAY better than peeing, that’s for sure.”

“Your cum came from your balls, silly mutt. Yeah, those two round balls you have between your hindlegs. That’s where your semen came from. As for the feeling… huff, it was mutual, dog. This very intense feeling is called an orgasm, and it serves to ‘reward’ us for the intense exercise of mating. I’m sure you’ll want to repeat this forever now, right?”

“Of course! If I knew about all of this before, I’d never have continued to making movies. I’d be on the streets mating with every dog and cat I could find, heh.”

“I bet you would, dog… I bet you would.”

Mittens then sighs happily and rubs her head against Bolt’s chin; both animals now smiling and cuddling together after having such a wonderful experience. But one question remains in the air: Would they be able to separate before Penny and her mom saw them like this?