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Simultaneously masturbating your male partner with one hand, and inserting fingers from another hand in his arse.
Sarah asked Dave if he wanted to try a new position: the bicycle pump. he said "hell yea!"
by fredhoggins October 17, 2007
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being defined as having a woman lay down on her back then proceed to take another woman have her rub her vagina and pump her legs as if riding a bicycle
bicycle pump can be defined as Meera laid on her back and spread legs open as Milani proceeded to rub her vagina as Meera moved her legs in a circular motion as if riding a bike, "yeah pump me"
via giphy
by tarobaap6969 January 09, 2017
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