"What? No, get down on your knees. I won bro, you know the rules." This is the third bet in a row you've lost against your sister, and the stakes just keep getting higher.
I lost a bet and had to blow my little sister. I was fine with it, but I had no idea she was filming me the whole time! Now the whole school knows how much of a cocksucker I am...
Little sister lost a bet, now I get to control her vibrator speed for a whole day. As soon as she slid it up her ass, I knew this was gonna be an unforgettable experience.