Some guys are embarrassed to buy condoms, while others plunk them down on the counter with pride. Regardless, wouldn’t it be great to get them for free? If you’re willing to be a guinea pig for a certain brand and report back on your experiences, you could win a year-long supply.

The Brazilian non-profit DKT International, which uses private donations to market and sell low-cost condoms in economically disadvantaged countries, is hosting its fourth annual condom tester contest.

Here’s how it works: use the group’s Prudence brand condoms, share your exploits on the DKT website, and if your story is chosen as one of the 100 best, you get free condoms for a year.

The competition is DKT’s way of trying to lessen the stigma of condom usage, and it seems to be working. So far, the group has sold in excess of one billion condoms in Brazil, and more than 3,000 stories have been submitted from users there and in other countries.

There’s one barrier to entry, though — the website is written in Portuguese, so if you don’t speak the language, you may need to use a translation tool. Or you could just kill two birds with one stone and hook up with that hot Portuguese chick you’ve had your eye on and let her read the stories to you as foreplay.