When someone is masterbating and another party(ies) is assisting by tickling the balls or rubbing the vagina you are Contribulating. (Contributing to masterbation) bauerle family 2016
I had two girls tickling my balls while I was jerking off and when I came I thanked them for their contribulation.
by Tommy Nerd December 26, 2016
Contribution but spicier
by xxliviixx February 11, 2023