Enter his shower

After Caleb's been gone for a couple of minutes, I make my way upstairs, taking my pajama pants and boxers off in the hallway before quietly opening the bathroom door. I leave the door open as I slip into the shower behind him.

He starts to turn towards me but I quickly push him against the shower wall. He yells, "What are you doing Derek?!"

I smirk as I line my cock up against his asshole, "I'm going to have some fun, I'm sure you'll enjoy it too."

He tries to object, "Derek, no, I'm not gay!"

I don't listen to him and start to push my cock into his ass, I can't contain my excitement at getting to fuck my brother. I was hoping that he would be more willing, but I continue to push into him until I've filled him with the full length of my cock.

Caleb starts crying, "Please... Derek... please stop."