Watch a first date go wrong with these hilarious visual metaphors

Here's a fun video that uses a lot of symbolism and visual metaphors to describe the experience of a first date. The idea is simple but complex at the same time: we're getting a peek inside the mind of a germaphobe and everything we see is an interpretation of what he's seeing. It's fun to guess what's what. » 12/10/14 1:35am 12/10/14 1:35am

We're Just Three Years Away From Male Birth Control (Again)

For guys, birth control options are pretty limited, and for years we've been promised a male version of the pill—some reversible process that will protect against the threat of offspring that's not as permanent as a vasectomy. This new injectable gel, however, has already proven nearly foolproof (in baboons at least)… » 11/26/14 5:15pm 11/26/14 5:15pm

How a movie sex scene actually looks on the set (mildly NSFW)

As you could imagine, all those sex scenes that look so hot on the big screen are actually quite awkward while filming. Check out this behind-the-scenes clip of Brooklyn Decker and Patrick Wilson trying to get into it while they get sprayed with fake sweat on the set of Joe Carnahan's movie Stretch. » 10/06/14 12:37am 10/06/14 12:37am

The weirdest things women used as contraceptives throughout history

What does crocodile dung and weasel testicles and pig intestines and fizzy cola and moonshine mixed with ground beaver testicles have in common with each other? They were all used as contraceptives throughout history. Some were inserted into a woman's body, others were eaten and a few were just worn. » 10/04/14 1:32am 10/04/14 1:32am

Why Russia Was Studying Space Lizard Sex In the First Place

For a brief moment, the internet was captivated by the thought of geckos copulating madly in a lost Russian satellite. Russia has since regained control of its lizard-sex orbiter, but the whole episode has gifted us an opportunity to consider a topic of extremely legitimate scientific interest. Namely, lizard sex in… » 7/29/14 12:27pm 7/29/14 12:27pm

The Penis Propaganda That Warned WWII-Era Soldiers of Venereal Disease

During World War II, a foe far more insidious than the aggressive Axis powers was felling our boys fighting overseas. Venereal disease had always been a huge problem for American troops, but in 1942 the government got serious about schooling soldiers to be more conscientious with their erections. Protect Yourself is… » 7/25/14 5:45pm 7/25/14 5:45pm

A Nanotech-Powered AIDS-Killing Condom Is Closer than Ever

Correctly used, condoms do a damn good job of preventing STDs (and pregnancy!). But nobody's gonna say no to an improvement that ups those odds. Say, a condom coated in antiviral gel that kills up t0 99.9% of HIV, genital herpes, and human papillomavirus. Australia just said yes, and hopefully the U.S. isn't far… » 7/22/14 4:26pm 7/22/14 4:26pm

Seeing strangers take off each other's clothes is quite awkward

Here's the official, anted up sequel to First Kiss, called Undress Me, which means "strangers" are taking off each other's clothes now in a video to promote the new season of Masters of Sex. It doesn't quite have the well acted charm of the original and you feel more like a voyeur this time around but watching… » 7/10/14 11:00pm 7/10/14 11:00pm

Debunking 20 common misconceptions about sex

Maybe you consider yourself a maestro in the bedroom or a lion in the sheets or think that you don't need no stinking advice about sex. But do you really know what you're doing? Do you really have all your info right? Mental Floss decides to debunk 20 common misconceptions about sex in the video below. You'll learn… » 7/09/14 11:15pm 7/09/14 11:15pm

Scientists Are Making Condoms Out of the Same Material As Your Contacts

The Bill and Melinda Gates Foundation recently awarded a grant to an Australian research team trying to build a better condom. They're hardly the first to win such an award, but they have a novel approach. These polymer scientists are making condoms out of hydrogels, the same materials used in contact lenses. » 6/09/14 12:00pm 6/09/14 12:00pm