Eileen's head swam with conflicting emotions while he processed what Ty had said. On the one hand, the part of him which recalled having been a mother, and indeed a woman, felt concern and a little guilt at having done this to Ty, and felt like maybe he should tell her to turn back into a boy so he didn't have to deal with this. However, a more dominant part of his psyche knew that Ty could change anything and so could just wish away her child if it proved too much, and another part of him that felt dominant in a different way. That part felt primal satisfaction at impregnating a woman and passing on his genes- in fact, it ached to mate her again, to give her as many offspring as she could take.
"Uh... Eileen?" Ty could feel her own arousal mounting as she felt the response of Eileen's firm body above her, his still-hard erection burning against her flesh and making her nipples and clit stiff and her slit moist. She too felt kinda enthralled by her still unfamiliar female instinct to mate, particularly with her lover's handsome body not only bared before her but pressing at her.
Ty's soft voice brought Eileen back to reality, and he focused on the cute girl's face. Much as he desired to just mount Ty all over again, he decided to have a little self-control and ask her, "Ty, are you OK with me getting you pregnant?"
"Definitely!" Ty replied insistently.
The man smiled teasingly, and slowly returned to the perfect position to fuck her. "Well... you know what I'd love?"
"What?" Ty's breath was husky and full of anticipation.
"I'd love to breed you more," Eileen purred.
Ty felt her slit moisten as his head rubbed over her clit. "I'd love that too."
"I'd love to get you pregnant with child after child," Eileen heard himself elaborate, his instincts seizing his voice. "I want to turn you into my breeding bitch, and make your stomach swell with my offspring. I don't just want you to give me children..." He leaned into her ear, his shaft brushing against her soaked lips, precum meeting juices. "I want you to give me a litter."
Ty's heart was beating at an insane pace. She wasn't sure whether she felt more turned on by the fantasy of what Eileen would do to her, his firm body preparing to follow through on it, or his rich, horny voice. "Do you want that?" he asked, as much for consent as to make her beg like a bitch.
"Of course I want it!" Ty gasped. "I really, really, really want it! Just mate me already!" To her relief, Eileen gave her her wish, and she gave her voice over to moans of satisfaction.
His hips shoved his seven glorious inches inside her and gave a quick massage to her G-spot before he withdrew and slid back in, and fittingly, his motions soon became instinctive and animal. He thrusted disjointedly and forcefully, and held her down while her legs wrapped round his back and he gave appreciative grunts and groans right into her ear. Unrestrained, shameless fantasies about how beautiful Ty would be when she had a belly full of their caboclo babies swam through his head as he pounded her faster and faster.
Under him, Ty felt like her mind could go blank with pleasure as she felt Eileen rut her somehow even more carnally than he had the last couple of times. At the same time, she reveled in how her female body tingled and jiggled while his male body fucked it- she almost felt like she could never go back to being a boy, not when emasculation felt this good! His groaned declarations into her ear, things like "you're such a good girl, babe~" and "you're so hot, you're like a bitch in heat~", only turned her on more- she knew everything he said was true, and she loved it.
She wished she could encourage him, maybe tell him to verbally denounce her former manhood while he made her body do what only a female body can, but she was gasping and moaning uncontrollably with the incomparable pleasure, and as he moved harder and faster it became more and more unthinkable to interrupt this with anything.
At last, of course, it had to finish, and Eileen pushed Ty into a mating press again and loud grunts of satisfaction escaped his lips as he came. His balls pulsed against Ty's crotch and she felt his head twitch and splurt thick cum inside her, his firm flesh pressing tantalisingly at hers and pushing her to her own peak. She clenched around him, trying to eke out as much of his seed as she possibly could, and her nipples and clitoris throbbed with sensation, the roughness of her lover's touch only stimulating them further.
Slowly they recovered, sounds heavy breathing filling the room before they passionately kissed. Once Eileen broke off the kiss, he thought of something. "Hey Ty, I have a question."
"Yeah?" she mumbled.
That tantalising, horny smile returned to his lips. "Are you gonna give yourself lots of eggs for my last load to fertilize, or one egg at a time so I can fuck you over and over?"