Turning back to each other for a moment, Ty hissed at Eileen, "I know what you're thinking, and I'm thinking it too... but they're our kids! We can't!"
"Who said they had to be?" Eileen smiled, and she realized he had a point. She wished their genetic relations to be severed, and the group of handsome young men and women around them shimmered and their features slightly altered.
Casting aside any hesitation, Ty and Eileen stood and allowed the many lovers to surround them. The sights and scents of hard penises and moist vaginas were irresistible, and before they knew it they were both at the centre of instinctual, passionate group sex.
Ty was mostly surrounded by men eager to mark her with their semen as Eileen had many times already. Two of them spread her legs and pushed their shafts between her thankfully loosened lips, filling her intensely. A further man caught her from underneath and eased his shaft into her tight backdoor. Another chose to mount her chest and pump his manhood between her breasts. Just to make it so she couldn't protest or even moan, another man shoved his cock down her throat. More of them guided her hands to stroke their erections, and she thought she could sense some men jacking off over her. The many phalluses around her only reminded her how she had relinquished her own manhood, and she loved how her current body felt better than his old one ever had. She got a little respite from all the masculine hormones around her when two young women knelt and sucked at her breasts.
In the meantime, Eileen was busily pounding a young woman under him while another girl stood over them and positioned herself so he could lap at her pussy. There were several other men and women around him rubbing themselves while watching their lovemaking, and one man even made a move to insert into his tight butthole. He whined in surprise at the first insertion his body had experienced since becoming a man, but was surprised to find he enjoyed having the other man fuck against his prostate and his body press against him.
With a certain inevitability, Ty's body got filled with thick cum from her lovers, and Eileen felt himself ejaculate inside the hot girl he had been fucking, mating her. The two of them wondered what to do next...