You open the door

Once you open the door, you notice the voice belonged to Mark, who enters the room swiftly without even asking if he could come in in the first place.

You both sit down on your bed and stare at each other for a while, before you see Mark send a grin in your direction, he looks like he is planning something. "So... John, that wasn't your first time sucking cock, was it?"

You raise an eyebrow at him, not being able to point out whether he was being serious or not. You were pretty sure that Ben wouldn't like the idea of you sucking another guy off since you have always been the good one between the two brothers. Not like Ben was bad, he was a good guy, but it was pretty obvious that he wasn't a virgin, he's confident and dominant, which you weren't.

"I'm not going to tell Ben" He adds as he reads your facial expression, moving closer to you.

You could practically feel his heat radiating from his body, making your boner grow larger. He notices the bulge growing in your pants and he just smirks to himself, putting his hand on top of your crotch and giving you a few strokes before leaning into your ear. "Let's make a deal, if you suck my cock just as good as you did with your brother, I'll eat your ass real good and let you cum, what do you think John? He doesn't have to know."

You really want to release, and this tension makes your head cloudy at the moment. Ben could get really pissed off at Mark if he knew he did this, but he doesn't seem to mind too much.