He's attracted to himself

"You're just not used to finding yourself attractive."

"What?! I mean, I said that, but it's not like I want to fuck myself!"

"You don't?" she asked, holding up a small mirror, "You don't want to see those lips wrapped around your cock? Feel her hair in your hands as you pound her sexy face?"

Xavier could feel himself growing hard, and she saw the tent forming in his pants.

"It's okay. Here's what you have to do." she said, and he turned to her for guidance.