There is a Festival In Okirika in Rivers State called #IRIA_ceremony where Virgins are kept in one special room for 1-3 months, where they will undergo some training on womanhood. Once you see they see their first menses, they will walk Unclad to the village square and It’s a big occasion for the family which they are brought out to dance in public like this to be sprayed money; then Men can now go and book them in the room for marriage.
It started back then since 16th century it still happens till date
More photos below: