I slid my middle finger into my niece's slippery cunt just in time to bump against my wife's finger - entering her from the other side.

"Oh, fuck!" Pammy gasped. "Fuck, yes! Don't stop! Don't ever fucking ..."

My wife snickered.

I was barely holding on, hugging Pammy's hips as I thrusted my aching prick in and out of my wife's twat. Teresa was actually doing the pelvic twinges - or whatever - that Pammy had told her to do. It was making her vaginal muscles grasp at my cock as I slid in and out of her - and it was driving me crazy.

"Fuck ...." I growled.

"Don't...