1 definition by Kei + Seth
The occasion in which a girl has lost her rectovaginal barrier and thus is left with one big hole to facilitate both anal and vaginal sex simultaneously.
"My girlfriend and I had rectovaginal sex."
"What's that?"
"When you have ass and pussy sex...at the same time."
"What's that?"
"When you have ass and pussy sex...at the same time."
by Kei + Seth March 27, 2007