A straight girl-on-girl hook up is where two straight girls have sex. The girls can not be lesbian or bisexual. This is also called and Experiment.
Jane: Did you hear?

Penny: What, did Fat Felicia have liposuction?

Jane: Sara and Leslie had a Straight Lesbian Hook Up!

Penny: But they have boyfriends!

Jane: So do I but I had sex with Ellie!

Penny: WHY ARE ALL THE STRAIGHT GIRLS SLEEPING WITH THEIR FRIENDS WHILE THEY HAVE BOYFRIENDS!
by AzealiaB November 21, 2013
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A waste up lesbian is a girl who only like to suck on nipples and lips. They do not engage in vaginal sex with another woman. They still enjoy sex with men.
Two girls only topless making out-waist up lesbian
by Tits only lesbian January 26, 2014
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