This is a swamp self bondage clip. Wearing only a tiny pair of PVC briefs, John Marsh ties his ankles around a board sticking out of the mud. He then ties his genitals to a rope that goes deep into the mud and through a steel ring in the buried end of that board. He runs the free end of the rope through a one-way tightener so he can pull himself deeper and deeper into the mud by his cock and balls. As he struggles, he tugs as his tender bits and pulls his head under the mud. After much struggling, going under, and moaning, John resurfaces and massages his balls.