Last night I was invited to a party where (among other things) a gentleman tied down a beautiful nude woman on a gyno exam chair, and used a fucking machine and Hitachi Magic Wand simultaneously on her. She came dozens of times. ("Tis the season to be jolly.)
Me? I tickled her ears simultaneously. After a while I noticed that her shreiks coincided more with my tickling than the other stimulation. Hahahaha.