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when a girl lays on her back, and the guy inserts his dick into her anal, and sticks his fngers in her vagina. thus it being a two in one hole kind of deal.
"It felt amazing when he gave me 2-par!"

"Man, it wa cool to hear her moan, and be in her twice at once. Whoever thought of 2-par, is kinky"
by Redheaded Sex Devil January 23, 2012