As Ty stepped back in front of Buck, he willed his own changes to start.
First, the skin on his chest lost all hair and got silky smooth. Looking down, Ty felt a slight tingling under and around both of his nipples. As he watched, his nipples and areola grew, getting to be the size of an average adult woman's. Next, the flesh under and around his now feminine nipples started to puff up, expanding outwards into soft mound of tit-flesh. They just kept growing, getting heavier and heavier, before stopping at about large DD cups. Bouncing, Ty grinned as he felt his new boobs jiggle with each movement.
Next, the tingle migrated, settling around his lower abdomen and the stretch of skin between his balls and his taint. He felt his innards shift and gurgle, conforming to new positions. Moaning, he felt the skin part, revealing a new, puffy, dark brown, mare pussy, pulsing and winking with arousal.
Reaching his hand around his huge balls, Ty fingered his new addition, gasping as new sensations threatened to overwhelm him. Groaning, he forced his fingers away, before looking at Buck.
"Hung like a horse," Ty murmured as he stalked closer to Buck, breasts bouncing and balls swaying. Instantly, blood rushed to his cock, making it virtually explode out of his sheath. It hovered before his face, throbbing like mad and twitching in time with his heart-beat.