You get free and take your !

While Stacy takes Derek in her ass repeatedly, you realize that you can slip the other end of the handcuffs over the top of the bedpost. You wait patiently until their eyes are closed in concentration, then escape your position. You consider just leaving and going home, but the need for **** is too strong. Quietly, stealthily, you crawl up behind Stacy. Derek is holding himself up off the bed and using his body as a sort of platform while she impales herself on him. You take your time to aim your shot perfectly, then strike like lightning.

Derek yells out in surprise as you sink yourself to the balls in his exposed anus. You're a bit surprised at how easy it is to get into him. You would have expected him to be much tighter. You are even more surprised when he starts cumming violently, screeching and moaning as his cum shoots up into Stacy. She looks around in confusion, then sees what you've done.

"Hey!" she says angrily. "Stop that! Get your cock out of my bull! He's supposed to fuck us, you jerk." You ignore her and start pumping in and out of Derek's ass. Serves them right for trying to chain you up and violate you.

"Oh, fuck yeah," Derek says. His voice seems to go up and octave as he moans and squirms on your dick. "That's a great cock."

"DEREK!" screams Stacy. "What the hell?! I told you you had to dominate him tonight."

"Sorry, babe," he says. He doesn't sound very sorry. "What do you want from me? You know I like bottoming better, and your boyfriend has a great dick." Stacy pouts while you give Derek a nice, rough pounding. He encourages you to fuck him harder, then cums again. Stacy takes awhile to get over having her plans ruined, but finally agrees that turnabout is fair play.

From that night on, the three of you get together at least once a week. There's a nice symmetry to your relationship, as most of the time Stacy pegs you, you assfuck Derek, and he fills Stacy in both her holes. Not all at the same time, obviously.

THE END