Yes

John grabbed Mark's hips. "Ok, Amber. I'm doing my best to satisfy your needs." He pushed her hips back and forth.

"Amber?" Mark asked wondering about the name John had given her. Then she continued rubbing hers ass against the hardening cock of her boyfriend. "Amber is a good name for a redhead like me." She smiled at John. Her hips moved a little more until she let out a moan as John's hard sock entered her ass again. "Let's have a second round to celebrate me becoming a girl and your girlfriend." Amber grabbed John's hands and pushed them against her breasts. Despite she was a normal boy just a few hours ago Amber was already blooming in her girl-life and was loving getting fucked.