Part 2--seduction
The mud slave starts removing gear to make it easier to move... the the feeling of the mud drive him to dive back in and move deeper into the sludge...
Watch has he writhes to sink deeper, fucking the mud with each movement...
Before long the urge to get totally covered takes over... as does the desire to submerge... the thickness of the mud requires some effort to force his head under...
Mud slave is now a rutting, horned up mud monster.