Sex Crest

When a girl is riding you and she is in her downward motion, you thrust upward meeting her halfway. As in a river cresting.

Jacob performed such a solid sex crest that I flew off the bed.

Sex Crest by Lean Gus August 5, 2011

Sex Chest 

a very nice set of breasts that you want to make the sex with.

My Friend Kristen Bought Herself a Sex Chest.

Sex Chest by Nick Nicholas Nick October 18, 2008

Mexican Chest Sex 

When two people are rubbing up and down in a vertical manner, chests touching while standing.

This can be done between any two people, regardless of sex. There is no horizontal movement, only vertical rubbing of the chest areas. Participants maybe clothed or not.

"Hes not even humping her. It's like mexican chest sex!"

Mexican Chest Sex by theorator August 25, 2009