“See? I promised I was going to get you the best birthday gift ever!” Sarah said as she worked her 18 year old sister’s mouth up and down his cock.

“How’d you know what to get me?” he asked.

“Come on! I’ve seen the way you look at her every time I bring you over to my house. I knew from day one you wanted to fuck her brains out. So, I convinced her to sign up for the Orifice Leasing Agency last week. Then, I rented all her holes in your name. She’s your little sex slave for the next five years.”

“You’re the best girlfriend ever!”

“Well, technically I’m not your girlfriend anymore. I signed up at the Agency with her and leased all of my holes in your name too. You get to have both of us as your personal fuck holes.”

“Sweety, you’re the gift that keeps on giving. After I fuck both your brains out tomorrow, you’ll come to the bar and help me pick up a new girlfriend, right?”

“Of course I will. I’ll eat your new bitch’s cunt out while you fuck her ass and make my sis here suck her tits. Anything you want! We’re yours to use and abuse.”