scuba-docking involves the reciprocal act of passing faeces from one willing anus to another for enjoyment or sexual stimulation; or masturbating yourself or another participant in view of this act
space-docking or mutual masturbation performed in public aquariums
"scuba-docking involves the reciprocal act of passing faeces from one willing anus to another for enjoyment or sexual stimulation; or masturbating yourself or another participant in view of this act" What is the definition of "scuba-docking"?