Extended labia on both sides is called a double bitch flap.
Bitch flaps are a favourite of lesbians and those too cheap to buy a chastity belt.
Not to be confused with bitch tits.
"mary has the biggest bitch flap i've ever seen!"
"she got be right in the eye with her bitch flap!"
"I went shopping and all I bought was deodorant for sarah's bitch flap"