I once had the pleasure of orally servicing 3 different women during a session .  Talk about a fun time.  When I would bring one to orgasm, she would climb off and another would straddle my face until I made her cum, then the third would take her place  --  and so on and so on -- just like a conveyor belt.  That way I got to please them all several times over without anybody getting too sensitive.

The perfect session as far as I am concerned, but unfortunately it wasn't around here.  Wish I could do it again though!