The world's strongest vagina belongs to the Russian woman, Tatiata Kozhevnikova. Seriously, she broke records to be awarded with that title. Apparently she lifted 14 kilograms worth of weights (almost 31 pounds) to achieve it:
Kozhevnikova of Novosibirsk, 42, has been exercising her intimate muscles for fifteen years, and has already made her entrance into the Guinness Book of Records as the possessor of the world’s strongest vagina, she proudly told

“After I had a child, my intimate muscles got unbelievably weak. I read books on Dao and learned that ancient women used to deal with this problem using wooden balls,” she said. “I looked around, saw a Murano glass ball and inserted it in my vagina.”

“You insert one of the balls in your vagina, and it has a string attached to it with a little hook at the very end. You fix a second ball onto this hook.”

“It’s enough to exercise your vagina five minutes a day, ladies, and in just one week you’ll be able to give yourself and your man unforgettable pleasure in bed,” she says.
Watch out, rapists - if you ever target this woman unknowingly, she can break your pee pee. We salute Kozhevnikova and her strong vagina!

[via Nerve]