a nervous twitch during an orgasm or just before intercourse, in which one individual "flinches"...a bit like tourettes....and makes the other person included in the sexual act laugh and chuckle...laughing and chuckeling is a major turn on for some people...so people with a "sex flex" are not left lonely!!!
person 1: mmm....yeah baby
person 2: *twitches*
person 1: omg wht was that?! hahaha! u sex-flexed!!! oh yesss! i am the god of sex!!!
person 2: *blushes* i have ....tourettes....
person 1: sex-flexing is THE biggest turn on ever.....mmmm.....do it again....
person 2: *twitches*
person 1: omg wht was that?! hahaha! u sex-flexed!!! oh yesss! i am the god of sex!!!
person 2: *blushes* i have ....tourettes....
person 1: sex-flexing is THE biggest turn on ever.....mmmm.....do it again....
by Caroline Ratcliffe June 11, 2006
by Kaichester August 29, 2009
A personality trait formed of boasting about sex/sexual activities usually done by a person who has recently begun having sex after a long dry spell. The change in subject to sex in the group is also likely to have been brought up by the same person, making tenuous links to otherwise non-sexual discourse.
(Flexing about sex)
(Flexing about sex)
Person 1: Jake wouldn’t stop going on about how many times he has sex last week
Person 2: yeah he’s got sex-flex at the moment
Person 2: yeah he’s got sex-flex at the moment
by Plsplsplsno July 13, 2020