"hunny, shall we get this gas pump going or what?  "oh i've never tried gas pumping before"  "oh it's easy, il teach you""
an act of sexual foreplay involving 2-3 people
""hunny, shall we get this gas pump going or what?  "oh i've never tried gas pumping before"  "oh it's easy, il teach you""" What is the definition of "gas pumping"?