Him putting on a chastity cage.

You open the door and see Dale standing naked in the middle of the room with his back turned to you, doing something with his dick.

"Hey buddy, I thought it would be a little shitty to let you down like that. Let me try my first blojob on you, ok?" you say.

He astonishedly turns around hiding his dick with his hands: "What are you doing in here? Can't you knock on the door?" he asks.

"Oh, I'm sorry, I don't know what I was thinking. But why are you hiding your dick like a little boy? It's not like I've literally seen it up close 30 minutes ago?"

He sighs. "I didn't want you to find this out so quickly. It's a kink of mine". He removes. his hands from his crotch. You see his dick cramped up in a tiny transparent plastic enclosure.

"What the hell is that", you ask.

"It's a chastity cage. It prevents me from jerking off or using my dick for sex" he explains.

You remember now. You once read about these cages and the kink associated to them. You never thought you would come into contact with one of them though, much less your flat mate wearing one of those.

"You can lock these things right? Where do you have the key?", you ask him.

"Right here, I just locked myself up.", he says, showing you the keys he holds in his hands.

"Mind if I take a closer look?", you ask. Without answering, he hands them to you. "How long have you been wearing it?"

"Well, I took it off for the days since I moved in with you because I didn't wanna risk you noticing it. I try to keep it on for the night though. The last time I came was before moving in with you." Dale says.

"You must really wanna cum by now then", you think out loudly.