SexualRecords.com
Most Vaginas
In extremely rare cases women are born with two vaginas, though, oddly enough, the condition goes unnoticed until she reaches sexual maturity. Various degrees of "doubling up" can occur: two vaginal tracts but only one external orifice, two orifices that fuse into a single tract, or two complete separate openings with two uteruses and four ovaries. Corrective surgery is available, and if treated shortly after birth the prognosis for long-term recovery is excellent.
http://www.sexualrecords.com/WSRphysiology.html