The 3-way swivel
A variation of the Spit Roast. Whilst one person is servicing 2 partners from both ends, the partners then, in sync with each other, spin the servicing member without removing themselves from said member. Best done when the fishing is slow on a boat, preferably with a woman under 110lbs.
Thank God we had Cindy on board. The fishing sucked but we were able to rig up The 3-way swivel. She got sea sick afterwards but it doesn’t matter because we got ours.