by 765657 August 7, 2011

Two girls that share a relation to each other such as sisters that do anything in their power to flirt with anything that has a penis. Mostly refered to as skank.
Bob: Man did you see those girls flirting with me?
Sam: Yeah they were acting like such Lehnen sisters.
Sam: Yeah they were acting like such Lehnen sisters.
by Jovial Badger March 27, 2009

by Emmy Conley April 22, 2021

by kindofanicon June 12, 2018

by rparis93 October 8, 2011

To perform cunnilingus on another member of your sorority, typically as a friendly favor rather than a typical hookup or relationship
Sister 1: It's been too long since I've gotten laid, I wish someone would sister suck me.
Sister 2: I got this.
Sister 2: I got this.
by trippletriangle April 25, 2015
