Back at Sarah's home the girls had spent hours eating pizza and watching movies. Karyn had worn the Magic Bra all evening in preparation for sexy times with her Japanese girlfriend Akane.
In a spare bedroom Karyn sat on the bed wearing only little black lace panties while her beachball sized breasts filled her lap. Akane stood at the closed door to the hallway grinning at the sight of Karyn. "I remember what you said earlier." Karyn said as she stood and hefted her enormous breasts with her arms. Karyn's breasts shrank a cup size while her clitoris expanded rapidly. It expanded so rapidly that in a matter of moments her little black lace panties ripped off her body as a large full sized horse cock with flair exploded them off of her body with its sudden and spontaneous growth. The growth of a small pot belly on Karyn was hidden by her breasts. Akane gasped at the sight. "I'll never fit it all in you unless..." Karyn's breasts shrank again "you become a lot more elastic."
After taking several large loads across two hours of lovemaking Akane looked nine months pregnant. The girls discovered that Karyn's new pot belly was in fact a new extremely large prostate.
"Are you going to keep that monster?" a naked Akane asked. "I dunno" Karyn answered. "It is fun but I literally keep tripping over the damn thing." With a snap of her fingers Karyn's breasts shrank, her horse cock turned back into her clit, and her prostate melted away. Another snap and the room returned to the perfectly clean state from before the girls' had their fun and Akane shrank back down to her normal size and cleanliness without needing a shower. "I can always grow it back later."
