Definitions by the band of 5

Vertical Rhinoceros 

When two fully erect men lay on their backs, scissor their legs together until their balls touch, and a woman mouts both penises allowing for simutaneous penitration of the anus and vagina.

"I'll tell you Michael, there is no one I would rather Vertical Rhinoceros my wife with."

"I agree, your smooth shaved balls rubbing against mine really add to the experience, John."

Vertical Rhinoceros by the band of 5 May 17, 2014