The nurse joins in

You had just driven your hard cock into the tightest place it had ever been when the door opened. "Doctor?"

"Nurse! I need some . . ugh! . . help here." The doctor gasps as you inch inside her narrow channel. "Give Mr. Doe his rectal exam."

Your head spins as your cock is sweetly strangled - You barely feel the nurse behind you until she slips her oiled fingers into you again. Two, then three tickle your prostrate expertly as you bellow your pleasure into the doctor's dark hair. You stretch the doctor as the nurse stretches you and you spurt come deep inside the hot clutching anus. You stay hard and keep pumping harder as the doctor grunts and takes it all.

The nurse's smooth narrow hand... not much larger than your rampant cock... keeps inching into your ass and it hurts ... but you push back and opened yourself ... inviting more.