"I think I want both..." Ty whispered, and began pumping hard, hands falling from Eileen's massive breasts and onto the kitchen floor as he dug in and fucked her for all he was worth.
The regressed 25 year old's eyes shot open as she felt her own orgasm building with each thrust from Ty, shocked as she had never experienced it before, and that's when she realized he was changing her again. If the hot tingling before had been enough to drive her into a sexual arousal unlike anything before, the fact she was being fucked while she changed now took her to heights she had never imagined. As Ty thrusted madly, Eileen felt her entire body engulf itself in mad pleasure, and she threw her head head back and tensed, hands grabbing Ty's ass, legs trembling, as she felt herself cumming.
Orgasm slammed into the woman and she let out a full scream of pleasure unlike anything she had ever let out before, and shook madly, her grip on Ty tightening, as she whited out with pure orgasm joy. Just when she thought it was subsiding, the feeling returned stronger than before, and again she came. She vaguely felt Ty unload in her a second time, his semen hitting her pussy walls in thick gushes, and vaguely felt her whole body shrinking on the kitchen floor, pulling into itself in extremely erotic ways, but it didn't really register.
On top of her, Ty watched as now Eileen approached 22 years old and looked even more youthful and sexy. Little by little, locked in transformative orgasm, she grew tighter on his still hard prick as her body now began to shrink back as she deaged to 19. Ty watched, still fucking her with renewed stamina, as she shrank and shrank under him. Her body was losing height, she became cuter still, and soon Eileen was down to a 16 year old girl. Though considerably smaller, her breasts were still huge for her age and her body was still incredible. Soon enough, she was approaching his own size, spread beneath him and still cumming again and again. Ty grunted, blushed, and came as she practically death gripped his cock, her tighter pussy spasming around his five inches and milking him dry of everything else he had to give.
This time, exhausted, Ty slowly withdrew with a slurp and watched as Eileen bucked on the floor still, slowly fading back to reality and shrinking all the while as she became younger than Ty and kept going. Eileen opened her eyes, dazed, and looked down at a much larger Ty panting in between her still spread legs and realized to utter disbelief how small she was.
She sat up, still shrinking, and realized her breasts were dwindling quickly, fading back to developing mounds on her chest. That was when she realized, holding up her hands, that she was now a very young girl. "T-Ty!" Eileen squeaked, her voice high pitched, girly. "What did you do to me!?"
As she hit just 12 and her development began to reverse itself very quickly, Eileen was now much smaller than Ty and growing smaller by the second. He silently willed her to stop... which she did. Now lost in total disbelief and shock, Eileen sat up fully and rubbed her hands over her body. Her breasts had been reduced to flatness, while her body was that of a 10 year old.
"I-I'm little again." She said, blinking. "I'm so little! And young!"
"Yeah..." Ty grinned, taking her hand in his and marveling at the difference.
They both stared at each other awkwardly, with Eileen literally dripping cum from her 10 year old pussy, and they both blushed deep red. "This is a little weird." She said.
"Yeah." Ty agreed. "Too far."
"Yeahhh." Eileen nodded, laughing girlishly.