What is Crossing Sheaths?
1.
The act of "accidentally" rubbing your vagina up against another womans's vagina.
"Sure, I'll move in with you guys! But under one condition, You, me and Robert can have a threesone. Unless you're not comfortable with the act of crossing sheaths.. >;]."
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1.
This move is accomplished when two girls, on their period, are in doggy-style position with their arse holes together so as to create an..