an action in which two wifes engage in heavy, passionate, hot, sweaty, electrifying, incredible, kinky, disgusting sexual activities, both intimately and publicly, forcing other bystanders to feel the sudden urge to please themselves at that very moment and want to engage in the said sexual activity.

A jack off buddy (from 'cum' /'come', meaning 'semen', and 'companion'); a friend that you get together with for sessions of solo or mutual masturbation
Variant of: cumpanion (from 'companion' & 'cum'); jack off buddy & wank bud & JO buddy
Similar to: fuck buddy