He got aroused

"I'm sorry that this happened to you." John said feeling responsible for his parents change. He was nearly crying.

"Don't worry, John. We both know you aren't responsible for it." His mother said and walked over to him. "You yourself have a lot to used to after you got changed into this." She hugged John, which caused his big breasts pressing against her neck.

That not only comforted John, but also turned him on. His mother now was a sexy shemale, and that was so sexy in his eyes. "I'm sorry, mom, but you better let go of me." He said and gently pushed her away. She stepped a little back and looked at him puzzled. John lifted up his dresses skirt and revealed his growing erection.

"Oh my god." Said the mother and father in union. They were shocked to see their son getting an erection in front of them, and because of them. For a few seconds they looked at the growing cock on the busty blond woman, who was their son. Then John pulled the dress back over his erection and tried to hide it with both hands.