Pull Mark to bathroom

You decide to act fast.

"Come with me" - command you to Mark and pull him to bathroom with you.

"What're you playing?" - asks Mark. The bathroom is big and bright, with a plenty of place.

"I want to blow you." - rush you after a short thought.

"Jenny, are you OK? I have a girlfriend and you're my buddy's sister... And you've never show me some attention..."

"Well, things changed and now I want to blow your cock." - say you. To confirm your words you grab your t-shirt at bottom and pull it up. You feel your breasts bounce as they drop out from t-shirt.

"Wow!" - the only word Mark is able to say. You kneel in front him and reach his pants. He still hesitates.

"I'll swallow." - say you. That was enough. You pull down his pants and reveal his cock. It is almost erected and mid-size, not arm-thick foot-long you've read about on your favorite site with sex stories.