You are going to ask him what gift to give him for his birthday. The door is slightly cracked open. when you see him pleasuring himself while saying your name. You accidentally made a sound of surprise. He stopped what he was doing when he heard your voice

"Well, it looks like I got caught”

He said, turning his head towards the door where you are standing

“Well, don’t just stand there come in”

He said, pulling on his pant and fixing his shirt