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This is when two girls are with one guy and one of the girls is in the middle on her knees finger banging the other girl with one hand and jacking off the dude with her other hand. Hence... "The Bidirectional"
"What did you do last night?"

"I was with two chick and one got on her knees and gave us the bidirectional."

Yaaahhh Buuuudddd "Bidirectional"
by LDAJJB June 17, 2010
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