You really didn't know your sister loves to suck cock? Hate to tell you this buddy, but last night when you introduced me to your sister I was pretty shocked. Some of my friends and I already knew her, but by a different name! You see she loves to hang out at the clubs we like and she is known to get very horny. Then she shows us all her hot, pink pussy and takes us into the back room where she sucks every one of us ball draining dry! Buddy, she's a cocksucker, but she sure is a great cocksucker!