It's late evening, and you've went off for a jog in the park just outside of the city. There is a light breeze that is rustling through the trees, blowing against your well-toned body and pressing your tight fitting t-shirt and pants to your body. Your run is pretty uneventful so far, but that changes when you spot a strange plushy laying in the middle of the path, stopping to look at it. It appears to be some kind of some kind of kitten toy by the looks of it, sitting perfectly on its bottom, wearing a red jacket and blue pants. "Did a kid lose this?", you wonder, as you decide to pick it up and sit down on a nearby park bench with it. "Maybe the kid will come back soon for it.", you rationalize as you set the toy sitting next to you, waiting around for a bit to see if its owner returns. Minutes pass as the sky darkens from orange to the dark blue of night and the lights around the park brighten the path and bench you're on. As you look around a few more times, your gaze going away from the plush, another warm breeze passes by you, and when you look back to the toy... it's not there! In its place is a huge guy with the same fur color and cat face as the doll, but with glowing yellow eyes with no visible pupils. It wears the same red hoodie and blue pants, but they're quite tight on the feline who has some pretty impressive muscles, at least three times as huge as you that he makes you look like a skinny young buck. Most would be intimidated by such a hulking creature, but something is alluring about it. Its smell is as though it took a bath recently and slightly has an odor of manliness. It radiates a warm aura of body heat, probably coming off its huge muscles always at work. And those glowing eyes in the dark night don't instill fear, but a soft love with their beams. And then it begins to speak, having a low, burly voice that sounds like if comfort had a voice to it. "I see you have found my little plush. Bet you didn't expect me to be this big, did you?"

Your mouth is agape as he speaks to you and all you can do is nod yes in disbelief and awe.
"I am a wereleopard, but not from around here." He says with his loving voice. "I have come to your world in search of someone to train in our ways."
You finally form words again. "Even though I am a deer?"
He smiles. "I am just one werespecies of many who travel between worlds for new recruits. Anyone could have found me, but you were the lucky one."
You smile to that you got so lucky. "Well, I would be happy to get some training from you. When do we go?"
He stands up and offers his very large paw to you. "Take my hand, and I shall lead you there."
Seeing no reason not to, you grab his paw and stand up. Before you even notice it, the park has given way to a forest that is not of your world, as there are multiple moons in the starry night sky. All you can see around you is trees, and no signs of a city nearby. Your new friend walks down a dirt path you're standing on, and walking with him for a bit leads to a cozy log cabin off to the side, which he leads you to. Surprisingly, despite the rugged exterior, the inside is quite modern, with more present day couches, TVs, kitchen amenities and more. And despite looking a bit small on the outside, the inside is spacious enough for your huge friend, as there is still a good few feet of clearance for his head and room enough to not hit something with his broad shoulders and arms. He leads you through his living room, to a hallway that splits off. One looks to be a bedroom with a huge bed that you can see from the open door, another the bathroom, and another door that is closed that he goes to. He opens it and takes you inside, which you see is quite a huge gym room. He has plenty of equipment, from dumbbells of increasing sizes to rowing machines and much more. He even has a sort-of ring set up in the middle, perhaps for anyone that likes to fight or to test the strength of his trainees, most likely.

Your new personal trainer looks at you. "What do you think of my home?"
You smile. "It's lovely. So we train in here?"
He nods. "And, if you don't mind, you sleep with me."
You blush, since sleeping with him will be both warm and very comforting. "I'm fine with that." You look around and take everything in, asking, "Do we train naked or can we wear something?"
His smile seems a bit wider. "What did you have in mind?"
You murr. "Got something that's real tight that shows the goods and well... easy to clean if we get horny?"
He's smirking. "Follow me."
He leads you to the 'locker room/shower' combination that he has coming off of it, and shows you some various clothes to wear. One catches your eye, a tight looking blue singlet made of spandex. Somehow, he knows this and picks it for you. He then gives it to you to try on. Normally, you never would strip in front of a stranger, but either because he's super sexy or the warmness he gives off gives you the ease to strip naked for your trainer, who purrs quietly when he sees your toned, athletic body and your fair-sized penis and balls. Then you get on your spandex singlet with a few sexy snaps, as it contours to your body, bulging in your pecs, abs and package in the front, and your nice ass and back muscles in the rear.
You: "Well, how do I look?"
Him: "Mmmph, tight and perfect. And I shall change too."
He is eager to take off his hoodie and pants right in front of you, and showing off his hard, huge muscles and a very giant cock and balls that is more than a few inches thick and long. It's enough to make you blush more. But then he makes it even better when he puts on his own, red, singlet that looks super tight like a second skin, leaving nothing to the imagination as his muscles and junk are bulging out nice and hard. It's enough to make you stare and drool a bit.
He notices. "Need a 'protein' shake before we start?"
You gasp. "You mean?"
He nods. "Start sucking."

You are already getting on your hands and knees, hypnotized by the sexy beast in front of you. Your face perfectly meets his tenting junk, which seems to be showing every inch of its girth in the flexed material. You softly touch it, and it twitches in response to the new friend. It's so big and heavy and pushes back into your hand when you press in, certainly solid. You place a second hand on it and slowly stroke it from tip to base, feeling that the feline has barbs and veins bulging out from his meat. The allure of it is near impossible to fight, as you place your mouth where the head is and start to lick at the fabric there. The feline could feel it though his singlet, loving your attention to it. Your drool carefully wets the singlet, both making it a bit more visible, and getting it through to pleasure the head. Then you put it all together, stroking the meat and licking the head, and you start to make your friend start to moan, letting you do your work. After a bit, you open your mouth enough to get the tip in your mouth and start to suck.

As you are sucking on his cock head through the singlet, he places his head on your head to move it out of the way and with his other hand, he uses one of his claws to cut into the material of his singlet starting at his nutsack and slowing drawing upwards along side of his very hard and very massive cock. He moved slowly and your mouth gets wetter and wetter and your cock got harder and was throbbing with every beat of your pounding heart. All you wanted was his beast cock in your mouth. You wanted his load in your stomach. You were so... so hungry. Your trainer's paw made it way to the top of that pulsing meat and out of that hole grew a huge piece of daydreams. Right in front of you is something you have been dreaming about for a long time.  "I don't care how much it hurts to take something that huge into my body I am going to make this beast cum", you say to yourself. You reach for his now exposed cock and wrapped your wet lips around it's head and you got both your hands starting to stroke that hot meat,  trying to get the milk it was producing. You could hear his cum moving around in his ballsack. It sounded like there was alot in there. As you are sucking on the head of his cock, his pre started flowing across your tongue and down your throat. The taste, oh my the taste. You started to suck harder and your hands picked up the pace.

This beast was moaning louder, he placed his hand on the back of your head and pushed his dick deeper into your mouth. You knew this was going to hurt really bad, you being so small compared to this giant of a beast,  but to your surprise, your jaw just opened wider. You are taking his whole beastly sized cock into your mouth. Your tongue wrapped round this meat, more of your saliva was being produced and your throat even opened wider with no gag reflex. You try to clamp down on his cock but all you could do is enjoy what was about to happen.
There was only about an inch left to be pushed into your mouth and there it was, his knot. You knew once that delightful thing enters your mouth, you will be filled with his cum, sweet cum so you put your shaking hands on his hard muscle bubble butt and pulled him in, causing that knot to pass over your wet lips into your hungry mouth, and with a loud moan this beast started cumming down your throat right into your stomach. He went up on his tip toes holding your head with both his paws. I felt his claw come out some but you hold his butt right where it was at. You are taking in so much of his cum, you think you are going to pop like a balloon. He just keeps cumming. His whole body started shaking as he was emptying his load into your stomach. You hold on tight. You want all he has and if you die from this encounter, you will die a very happy and full deer.

Time? How much time has passed? How much cum is in your belly? How many times have you came in your singlet? Are you dead yet? How much has this bull came? You can feel every muscle pass his fur. His shaking is easing up and his cum flow is slowing. He is lowing himself off his tip toes and he is easing the grip he had on your head. He is really breathing heavily.  With your head still in his hands, he slowly starts moving back, pulling his cock out of your throat, passing over your tongue, that is unwrapping itself from around his hot meat, which is still leaking cum from his dick slit. You try to pull out what cum he had still in his hose. As you look up, past all his massive muscles, you saw his face, he was biting his lower lip. He bit his lip open. You get really scared.  You stare, wondering if you are bleeding from his claws. Once he was all the way out of your mouth, he stumbled back against the wall and slides down. With a slight thud, he is sitting on the floor. You are so scared, you don't know what was going on. What was happening to your beast trainer/lover? You don't know if you should move closer to him, do you stay where you are, what do you do? As you watch, this huge beast's body expand and contract with him trying to collect himself after such a release. It's like he has been holding that load for a long time.  You slowly move closer to him. He slowly opened his eyes and still trying to catch his breath he says, "i am very happy you were the one who found my plush. you have been looking for you for a long time,  as you can see," as he points to your pushed out belly. You laugh lightly, making your cum filled belly do a little dance.

He raises your head so you are looking into each others eyes. He says to you, getting more loving and sweeter with each word, "You will soon grow into a muscle beast in your own right. I want you to know, I am in love with you. Do you want me to train you, to grow you, and to make so much love to you? To be your husband? Just say yes and your life in your realm will end and your life here will begin. You will also make me a very happy beastman... Please say yes?"
With a smile on your face, and not alot of thinking about, you say yes. He kisses you deeply and when you both break from the kiss, you notice that his eyes are glowing brighter.

He slowly gets up, using the wall to get himself stable.
You say, "Your lip is bleeding! Did you bite through it?”
Him: "I probably did, but it will heal quickly."
As he is taking off his singlet and placed it in the basket in the corner, he turns and starts undressing you. Your singlet was coated with your cum. He leads you to the shower where you wash each other. Every time you looked down, your stomach gets flatter and flatter. You kind of frown, but your beast husband/trainer says, "Don't frown, I have all you want right here", using one of his paws to grip and shake his nutsack so you can hear his cum splashing around. His other paw went around your back, pulling you in close and kissing you so deeply. You have never been kissed like that before, never.

As he continues to kiss you, and letting the warm water flow over your bodies, your trainer happily plays with your body. His big, soft paws rub your muscles deep and at just the right pressure. Any leftover tension seems to melt away as he starts high, playing with your biceps and triceps that seem to fit perfectly in his hands. Then he's onto your shoulders, pressing and kneading at your neck, releasing the strain of sucking his big, fat cock did to it. He goes lower, playing with your pecs like they were soft pillows and teasing at your hard nipples. The pads of his paws tease at your nipples enough to make you spew a second load a few seconds later, leaving your trainer in complete control. Then he rubs down your road of abs and bringing his paws to your sides, as he playfully squeezes you, and makes more cum release from your shrinking stomach. He goes around back and. oop, he starts teasing at your ass with some squeezing of your cheeks. They're at the midway point of firm, and soft, making for a fair sized ass that is just the right thiccness. Then he goes down your thighs, nice and big because you always are running and keeping up on your leg days. You hear your trainer purr, he certainly likes that. Then he comes back around, giving a reach around to feel your dick and balls. Mmm, not bad, a good 9 incher with some thickness and some good oranges to match between your legs. He gropes at your jewels, teasing you to make you cum again onto his paws. He then licks up your mess, and purrs when he tastes your warm, salty jizz. Clearly, he loves it all as he stands back up behind you and hugs you from behind, his junk up against your ass.

Mmm, your personal trainer is getting hard again, as his cock seems to be growing between your buttcheeks, and you can't help but feel him hump softly against you. You reach back and give your friend a playful slap to his legs, giving him the go-ahead to enter. And enter he does as he shoves his rod HARD into your tight ass, making you moan as it forces your insides open. Both of you moan in the sheer delight of tight ass on hard cock. Then your friend holds onto your sides tight as he slams you into the shower wall ahead for a hard surface to lay you on as he start pounding your ass hard and fast. He breaks away your resistance like a jackhammer tearing apart a chunk of concrete, and your asshole is gonna look like is has a big hole once he's done with you. But you don't care, getting railed by this stud, a beast with as big of muscles as his love stick, is fucking pure heaven. And your moaning, pleasured mind feels like its in heaven as you feel the meat throb and he shoves that bigger, inflated KNOT right in there, locking it in place in you. You scream in pleasure, asking for the glorious seed that comes after. And it finally comes, spurting in its hot, thick ropes, filling your insides once again nice and warm. He seems to jizz so much, reinflating your belly to that full, rounded shape again. This time though, it's going to stay a little while longer, as you feel that your panting partner's cock is locked in you for the moment, and can't be released until he calms down... but then again, maybe you don't want that, wanting to keep this feeling forever.

You stand there against the shower wall, panting from that fuck you just got and the feeling of this huge cock inside me and all this warm cum moving around my insides. This beast is still flowing his beast milk into you. He kisses your neck and you moan. As he tries to pull out, you tighten your muscle in your ass to hold him inside and to squeeze his cock. You moan and he moans. You release him and he pulls out. You tighten my ass again to hold in your prize. He turns you around and you both kiss deeply for awhile, then you wash each other.  After both of you are all clean, you and him put on a tank top and hit the weights for a hard dick workout. Every exercise was a lesson on concentration, heavy weight lifting, ass fucking and holding your loads as long as you both could. Every muscle hurt, even your cocks. He gives you bigger cum loads, but your body is used to his cum to build new muscles on your deer frame. Once you both are done with your workout, your trainer says it is time to rest. He takes you to his bed and you climb in with him.You peel off each other's sweaty tank tops and cuddle up against each other. He reaches over you since he was laying behind you, and took ahold of your hard cock.
"I see your hard again", he says.
You: "No, I am still so very hard, it still hasn't gone down"
He went up on his one elbow and says, "Maybe if you fuck a muscle beast, it might help this condition ".
"You know, it just might", you say, blushing.

You know you can’t hold this muscle beasts legs up on your shoulders while you fuck his ass, at least not yet, so knowing that, he rolls over onto all fours, giving you his ass to fuck. You are so rock hard. You are wondering if just fucking him with no weight lifting would be satisfying to such a big beastman. You have to lay your cock inside him to see for yourself.  You put my tongue to his hole first to get a taste and to get him more turned on. You know it was working for you when he did it.  He was moaning and purring while your tongue played with his hole. you move  in and pushed your throbbing cock into his hole and his muscles inside wrap around your cock, giving you tightness that caused you to cum right away. He moans and tightens up his ass, which turns your lust up to a new level. You start fucking that beast with some serious power. You are pounding and he is riding your cock. Both of you work in three full loads out of your balls, and he let go two of his own loads all over the bed. You are lost in each other and in the lust that boiled over in you both for hours.  Sweat was running off of you and him and the smell of musk and cum filled the bedroom, keeping you both hard in this love making.. You are heading for your fourth climax and he knew it so he tightens down again, sending you into my bigger cumshot ever. Your whole body tightens up, you gripped him even harder and he roars like a lion in the jungle. You hear that and you know he enjoyed it also. You slowly open my eyes to see the room go dark.  You fall forward onto the furry muscled back of your feline trainer/lover and was out cold.

When you wake up, you find yourself in the loving arms of him. The beastman who, to the best of your knowledge, loves you and wants you to be happy. As you watch him sleep, well you thought he was asleep, but he wasn't,  he pulled you in and you kiss each other deeply.  As time passed slowly, you know you could enjoy this for the rest of your life. You separate from the long kiss and he asks you to marry him. If you say yes, his plushy would no long travel to the other realm. You say yes to his question. He and you blush together. You then go back to kissing and from then on, anything was possible, but you know that everything was going to be done with him and all done in love.  All dreams needed to come true like this. The end.