Your older sister is always such a bitch to you, but not for long! You've found out that she does porn and you both know that your parents will kick her out if they find out. So you decide to blackmail her, making her show you her tits and ass before riding your cock. At first she seems pretty disgusted but once she sees your big dick, she almost gets enthusiastic! But reminds you that you can't cum in her since she's not on birth control. However, after riding your cock for a few hard minutes, she starts to rethink that, thinking of how great your cum will feel spurting inside her. Guess you'll get to knock her up after all!