My sister crashed our parents car and she is in trouble. She wants me to call my guy who can fix it for cheap and our parents won't know. I ask why I should and she says there will be a reward for me if i do. Later that day, she calls me into her room. She is naked and waiting for me to put my cock in her mouth. After she sucks me for a bit, she asks if I want to fuck her. She bends over the bed and tells me i can cum inside of her. I don't last long and i blow my load deep inside of her pussy