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1.
Also known as Skittle Bumping or Scissoring. It’s when two females grind genitals with one another in a cross legged position.
Anna fancies her vulvae being stimulated by Lorainne, as they embrace in the act known as the Gash Mash.
by MonkeyBoy808 June 14, 2010
 
2.
two girls scissoring themselves!
me and my bitch gashmashed for hours lastnight
by fritzinator March 16, 2009