"I guess you should decide," you reply. "You're the one who knows what being a Rymian is like, after all."
"Well, I am the only one of my kind. In this world, anyway," she giggles. "I would rather like to have a brood, so the Rymians can create a foothold on this world."
You're overcome with sympathy for her, and say, "In that case, I think I should turn into a Rymian hunter. You deserve to have fertile offspring if you want that."
"Thank you, babe," she grins, and you undress yourself as she wishes to turn into a Rymian hunter. Your skin turns the same greyish purple tone as hers, the darker tone emerging on your nipples and cock head, and you feel your teeth sharpen and pant as your own focusing crystal emerges in your forehead, pulsing and throbbing like a headache, though without the pain.
The focusing crystal soon hones in on her feelings, and you approach her, the two of you kissing passionately. Your focusing crystals sensing your arousal, and your status as the only two Rymians on this world, instigates a state of mating fever: you start producing far more sperm to maximize the odds of fertilizing her, and she rapidly ovulates, scores of eggs accumulating inside her rather than the one or two humans normally produce due to the absence of mensural pain or bleeding in Rymians.
You push her to the room's floor, and for both of you thoughts of anything besides the need to mate rapidly fade. Your cock pushes inside her, and you start thrusting eagerly, her legs wrapping round your back to keep you from pulling out (not that you'd try or want to). You start grabbing at her breasts and rubbing her nipples eagerly, and in response she does the same to you, surprising you with how pleasurable it feels until you remember the focusing crystals share the pleasure of Rymians while mating.
Pretty soon, a combination of the intense sexual pleasure and the knowledge of the impending rebirth of the Rymian race push you both to your orgasms. Her slit clings tightly to you, and you shoot several loads of seed deep inside her.
Once you both come down from the high, you decide to...