What is Grand Triangle?
1.
A sexual position involving three people, preferably one male and two females. The male lies down while one of the cunts rides his cock and the other buries her vag in the guy's mouth. While doing this, the two cunts face each other and make out, thereby causing a grand triangle.
Derek: Did you hear Eric and those two sluts from Downtown Brew did a grand triangle last night?
Jamie: What's that?
Derek: It's comparable in awesomeness to that time me and him a-teamed you
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