Eileen kissed down Ty's neck, the girl gasping at how sensitive her skin felt to his touch, his hand still holding hers. He soon reached her chest, and Ty breathed in deeply and felt a shiver run through her as his tongue brushed over her nipple. His bronzed lips encircled the deep pink flesh and carefully began to suck.
A whimper escaped the young woman's lips. As a boy his chest had never offered him any pleasure, so this felt surreal and intense. This was even nicer than how she'd fantasized it might be while turning into a girl- his warm mouth around her and the rubbing of his tongue were transfixing.
On top of all that, it also seemed to assert to her that she was female. His male body had never felt anything like this, and she felt like she'd missed out now she was getting to feel it. She stroked Eileen's head with her shaky hands, and felt his tongue flick her nipple in reply, making her moan harder.
His free hand moved to cup her other breast, and its thumb and index finger soon surrounded and rubbed at her other nipple. Ty moaned softly and felt an intense warmth welling between her legs. The folds which Eileen's tongue had just sucked the juices off of began moistening yet more, softening and loosening for an intrusion. This felt nice, but it was foreplay, a tantalizing hint of something more intense.
Ty's heart raced as she felt Eileen reposition himself, spreading his legs and making his penis touch her thigh. The phallus was still intensely hard and moist from her saliva and his semen, and the young woman could tell it ached to fuck her. Instinctual ideas about reproduction swirled in her head- having his thick shaft inside her, his balls splurting thick cum into her womb, his sperm claiming her egg and getting her pregnant...
She pulled Eileen off her tit and gasped for enough air to tell him, "Eileen... fuck me..."