Top definition
Close friends who have had sex with the same boy. Like vagina cousins, but more important.
Kerri and Christina are the best vagina sisters out there.
by kbearbabyyyy November 21, 2010
Get the mug
Get a vagina sisters mug for your guy Larisa.
2
Two friends that are so close their menstrual cycles become in sync.
Girl 1: "Stephanie has been hanging around Erica a lot lately.. You don't think they're vagina sisters yet... do you?"
Girl 2: "I can't tell.. But I think I'd have to say so."
by Kawaiikittypop September 11, 2014
Get the mug
Get a Vagina Sisters mug for your papa Callisto.
3
Two friends who are so close their menstrual cycles are in sync.
Girl 1: "Stephanie sure has been hanging around Erica a lot.. Do you think they're vagina sisters yet?"
Girl 2: "I'm not sure but I'd have to say so.."
by Kawaiikittypop September 11, 2014
Get the mug
Get a Vagina Sisters mug for your dog Bob.