Your sexy sister, Katy Faery, sits down on your bed and asks why you’ve been so weird during the summer party. Your parents finally went out of town, and you both decided to throw a big summer party. Katy tells you that you missed one of the slutty girls challenging the guys. She said if anyone has a dick over 6 inches, she would suck and fuck them. Katy said everyone failed her challenge, but she knew that you could beat them…and she knows you have always wanted to get with that girl. Katy brought measuring tape, and she measures your cock. Katy finds out that your dick is bigger than 6 inches, and she is intrigued that her brother has a bigger cock than anyone else at the party from school. Katy tells you to forget that other girl, she wants you all to herself. Katy pulls off your pants completely, and starts to suck your cock. Katy sucks on the tip of your cock, and measures you again. Katy tells you that you can’t tell anyone this happened, but she continues to suck your cock. Katy strips off her pajamas and panties, getting totally naked. “Do you like to watch me strip it off, Bro?” Katy backs her ass up to your hard cock, teasing you with her holes. She turns back around, and sucks your cock until you cum all inside of her mouth. Katy plays with your cum in her mouth, and swallows it all. “Now go show Slutty Stephanie, I bet you could have round two with her.”