Instant Sahara

When you're on all fours getting pounded from behind and your partner, without warning, attempts to stick a finger or two in your ass....and your pussy immediately becomes and INSTANT SAHARA and all actions comes to a screeching stop.

Guy: Me and my lady were rocking in the car and I didn't think she would mind a little action in her ass. But the minute I stuck my thumb in her hole, her snatch dried up like an INSTANT SAHARA.

FRIEND: Damn man. I hope you found a sock laying around.