Get the nurse involved.

You feel the doctor writhing in the straps beneath you, and looking over your shoulder, you crook a finger at the nurse.

"I think that the doc here needs a little examination." You say.

You grin as you withdraw your throbbing cock from the Doctor's wet pussy. She gasps as you withdraw, but with her legs in the stirrups, there is very little she can do to stop you. The nurse withdraws her hand from her skirt and saunters over to you.

You take the nurse's head into your hands, and kiss her softly. She responds by slipping you the tounge, and you revel in the kiss. Finally breaking free of her mouth, you guide her head between the doctor's lewdly spread legs. The nurse wastes no time, eagerly licking and sucking at the flesh of the doctor's crotch.

You watch as the nurse pleasure's the doctor, and your eyes stray to the skirt, now riding rather high on the nurses firm ass. Grinning evilly, you slide behind the nurse, and flip the skirt up, revealing a white pair of panties, which look slightly damp. Hooking your fingers into the elastic, you yank them down, revealing a soaking pussy. The nurse wiggles her ass back at you as she eats the doctor, who by now is screaming in another orgasm.

Grasping the nurse's hips, you guide your cock to her sopping slit. With no warning, you suddenly flex your hips, driving yourself deep into her heated channel. It feels incredible, as her pussy clamps down in response. You marvel at how different her pussy feels from the doctors, slightly tighter, and gripping you in different places.

You pump rapidly, the **** of your thrusts urging the nurse's mouth onto the doctor's pussy. Both women begin to shudder beneath you, and you know that you are very close to the edge.