Eileen carefully pushed Ty back to the floor, his firm shaft brushing against Ty's soft skin and making her heart race all over again. They looked at each other in amazement, unable and unwilling to hold back the youthful desire inside them. "Ty?" the young man whispered.
"Yeah?" she replied breathlessly.
"I wanna put another baby in you," he purred, and with that his penis moved down to her moist lips and pushed its way inside. Ty moaned eagerly from a combination of the sensation and his words- the feeling was most definitely mutual.
Eileen's motions were more passionate, eager and forcible, the energy of a horny teenage boy animating him as he thrust in and out of Ty. He admired Ty's beautiful female body as his dark hands cupped her pale breasts and pinched her nipples, making her arousal surge higher still, and wordlessly marveling at how much more a girl's body suited Ty than it had him. Being male felt so intoxicating he almost didn't feel like he could go back.
As he pounded her, Ty's warm slit encircled Eileen's cock tightly and she moaned eagerly, her legs pressed against the small of his back to keep him inside her at all costs. She was transfixed not only by Eileen's handsome male body and how it shifted above her, making her feel so submissive to him, but by running through her head how dramatically she'd changed them and how right all their feelings were. He was a man, and he suited it better than he had being a woman, just as she was a woman and suited it more than being a man. They had chosen these roles, and they would get pleasure beyond description from having them.
Soon she felt Eileen's thrusts grow short and rapid, and chose this as the best time to wish for herself to ovulate. At her order, her body produced an egg which awaited her fertilization, and anticipation built inside her as she recognized that soon her lover would cause it. "I'm close," Eileen groaned in his deep baritone.
"C'mon, cum for me," Ty panted, her toes curling and her slit clenching as her own orgasm approached.
"I'm gonna-!" Eileen gasped, a twitch racing through his shaft.
"Do it-!" Ty begged.
"OOHHHH!" they moaned in unison, though in dramatically different pitches of voice, as Eileen shot jet after jet of semen into Ty's pussy while she clenched tightly around him and her body shook and pulsed with sensations. They clung to each other and panted in the throes of orgasm, barely able to move or think for a few moments.
And inside Ty, Eileen's sperm swept up her ovaries and set about chewing away at the walls around the egg they found. Soon one slipped inside, and they bound together into a xygote, which moved into Ty's womb alongside her other recently-fertilized egg, lodged in and impregnated her with a second offspring.