Derrick could see Joe was ready for the next lesson, he already had an erection. He thought it was natural, he was a female from the waist down after all. He touched Joe's penis, it was shaped like a human one, but the tip was more flattened. Joe smiled: "I assume i should take that as a yes." Derrick nodded:"I need to try iit out, but please be gentle for the first time."
Joe slowly approached Derrick and started to touch his crotch, making him wet first. He slowly inserted his finger in the slit and started to feel his insides. Derrick let out a moan from the new feelings he experienced.
Joe grabbed his belly and started to crawl in between his legs. The flattened tip of his member found its way into Derrick's slit and started to go back and forth slowly. Derrick firmly hugged Joe with his hooves and they started to get faster. After some intense minutes, Derrick was about to experience his first female orgasm.
Derrick let out moans when his body shivered with pleasure. He was happy with the changes and felt wonderful.
After a few minutes of silence, Joe asked: "Do you need another lesson? Just tell me."