The other caveman's musky scent was so enticing that you moved your face closer, almost as an unconscious gesture. The scent became intoxicating, very much arousing and seeing your eyes wide with lust, the other caveman embraced you. This sealed your fate as your mind quickly let go of its last pesky human thoughts that encumbered its space now devoted to your new life, instincts and desires. They were primal and basic desires, true, but so fulfilling and satisfying for your body. Your last thoughts as a human being were that maybe being a caveman in a zoo wouldn't be that bad. Being a human being held a lot of inconveniences too, after all. Now you'd have no rent to pay, no money to worry about, no pointless job, no overbearing or ridiculous responsibilities and simple needs and desires. You'd forget the stares of visitors soon enough and life would be simple, with simple thoughts and goals to wake up to in the morning. Certainly your new friend would help you adjust too?
Your new friend turned out to be your new mate. He was bigger, more muscular, taller and possessed more experiences. So naturally he did all of the hunting, while you spent time gathering food and tending to other tasks. You hunted too but less so. It was all about cooking in the fake cave, cleaning it and doing other activities. The keepers of the island released live rabbits, chickens, deer or other animals in the very large enclosure that you and your mate inhabited. Most of the time, the food was merely deposited in the enclosure and you picked up the roots, meat, vegetables, nuts and few fruits left there.
You also spent a lot of time mating. And it was so good! Who knew coarse pubic and underarm hair, as well as thick hair on the chest could be so arousing and big bulging muscles so enticing. And it was nothing compared to the crotch of your mate, with its penile monster and bulging testicles bursting with semen about to be spread upon your body. Your mate, which you called 'Big Guy' in your head, was so talented in hunting, butchering and so gentle and loving in his embraces! And he did perfect blow-jobs! At first, he was so gentle with you to make you comfortable, caressing you, kissing you on the neck, playfully spanking you and tickling you, guessing where your most erogenous spots were with incredible care and talent. Yes, he was so talented at that! At first you still had pesky human thoughts of resisting but he tickled, caressed and massaged you into submission in a very short time. Big Guy made your reluctance vanish like snow under the sun. You could only communicate in grunts and gestures but it worked and his smell made you happy, as much as his sexual prowess. He liked you very much too in your romantic gestures and he always had sweet intentions towards you. He groomed you when it wasn't your turn to do so and made you little presents as well. When you cuddled under the pelts that made your bed, it was true bliss for you both. The stares of the visitors during the day meant nothing and you were both almost always hidden by the cave or foliage in the first place. You used to be a silly mate at first, not knowing what your role was but now you are happy and have a rewarding life. Except... Except you cannot have a. baby for Big Guy. You'd like to have one. But maybe one day a baby would arrive in the enclosure and you'd raise it as your own. Yes, that would make your little family whole, and you'd be the best male mommy and provider ever!