Definitions by Your Mother's Girlfriend

Riding the Pony Express 

The stage when you masturbate, so that you are at the highest peek of satisfaction, you move your pelvis in a back-and-forth like you are riding a horse.

Last night, I was riding the pony express. It felt so good. Until, that is, my friend barged in on me and forced me to dismount.

Riding the Pony Express by Your Mother's Girlfriend July 22, 2009