He blew her

John felt now very aroused as he now knew the cock was real and Dr. Valentine really was a shemale. His dream of discovering the secret cock of a woman came true. He continued to stroke her cock and it became harder and longer. It became the longest and thickest cock John had ever seen, and that turned him on so much he couldn't hold himself. John slid off the couch and knelt down before the therapist.

John opened his mouth wrapped his lips around the hard shaft. He began sucking on it, like he had said at the beginning of the treatment. "Yeah, that's right." Dr. Valentine said with a big smile. "I like it when a boy sucks my cock." John's head bobbed up and down as he sucked on the first inches of the cock in his mouth, he couldn't get more in as it was touching his palate. "You still need some training to take the whole length in. But for the first time you aren't bad." John didn't hear her, his attention was fixed on sucking his desired cock.