Suck My Cock

"Nel," you say. "I need you to suck my cock before we go."

"Pffft," you sister laughs in your face. "Nice try. Come on, we're going. I'm not going to suck your dick. " She steps out the front door. "Especially not within earshot of our parents. Are you daft?"

She steps out the door and you notice how nice her ass is, the curve of her butt, like it is almost inviting you to reach out a hand and grab it. But that would be too much, too soon. There would be time later. Your sister would find a way to pay her service one way or another.