It's cold in the house and sister wants to warm up in the tub, but brother is already in the tub! She finally decides that it's okay to share a tub cause she gets scared from the storm and he makes her feel better. She notices him checking out her tits and pussy. Once the power goes out they move into the bedroom for a game of truth or dare. She shows him her new pink vibrator and asks if he asks if hee first Blow Job can be him. His cock is so hard! He is a virgin and wants to just put the tip in his sister's pussy to see how it feels!! They start to slowly fuck and he worries about getting her pregnant, but she is on birth control so he can cum inside his sister's pussy.