Within Ty's freshly-transformed body, the result of the pair's transformation and consequent sex was finalizing. Despite being just minutes old, the sperm that Eileen's body had started to generate en masse which she had for the first time shot from himself swam through Ty's newly-formed slit that accommodated their intrusion perfectly naturally, as her body soaked up the semen that until a short time before it had produced.
Eileen's strong, energetic seed moved unabated up the passages inside Ty's body that had only shortly prior had been just outside the body producing their own kind, a kind that had been bound together and repurposed to a female reproductive role. This egg was worn down and eventually breached by the contents of Eileen's semen, and Ty's body started the process Eileen's had more than a decade prior as the xygote slowly moved into her womb and she was impregnated.
On the outside during all this, Ty watched as Eileen's hard cock slid out of her, seeing his shaft covered with his thick white seed and her translucent juices, and felt a little liquid seep from her parted lips onto the carpet. Seeing her feminized body and the result of their lovemaking was surreal in the nicest way. To think he'd spent years fantasizing about pinning Eileen down and fucking her and filling her with cum, and instead he'd transformed her into a handsome man, become a beautiful girl, and eagerly let him mount her until he filled her with his seed. And it had felt just as amazing as he'd imagined the reverse would.
As Ty sat up and looked at her body, seeing her big soft breasts and smooth, curvy figure and the space between her legs that was not filled by a penis but by the liquid it produced, it surprised her how eagerly she'd embraced womanhood. To say nothing of the fact that as soon as he'd been turned into a girl she'd actively given herself to the ultimate refutation of manhood and gotten impregnated. The realization that the MILF she had turned into a DILF would be fathering her child made her think of something...
"Eileen, um... is it OK if I keep the baby?" Ty asked shyly.