When two partners penetrate each other's assholes at the same time with either penis' or strap-ons. A decent amount of appendage length and up-curve is needed to do this comfortably.
Jim: "I want to try some new buttplay with Alex but I don't know what to do!"
Deep Dick Keith: "If you guys have some decent length and curve you guys could Double Jackhammer - I did it with Richard and we both couldn't walk the rest of the day."
Deep Dick Keith: "If you guys have some decent length and curve you guys could Double Jackhammer - I did it with Richard and we both couldn't walk the rest of the day."
by catapillarman July 10, 2016
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