Ok, guys, cool it with the "magic underwear" stuff. Please have a little respect. It's not magic, it's a mnemonic device. It only has as much power as the wearer gives it, by remembering how to behave.
I'm still Mormon, and though I'm going to ask to have my name removed from their rolls, I will continue to fight for their right to worship as their conscience dictates, and their right to hold certain parts of their religion sacred. I think that such a calendar is deplorable, and in VERY bad taste, and I'm disappointed that some here cannot bring themselves to be respectful. You ask for that respect -- how can you expect to get it if you don't give it??
I served a mission in Japan. I have seen so many naked missionaries that it's just ridiculous. Yes, many of them are smoking hot, just like so many guys in the clubs. Many are gay, but suppressing it because of what they believe to be right. I know I did. I don't say that's right, as I think they're depriving some nice young lady of a good, heterosexual marriage, and increasing the chances for divorce and hurting people who they love, but PLEASE, PLEASE respect their right to choose.
And I think you would be well warned not to seduce one of these. You'll ruin many peoples' lives, and create untold pain. I know, because I saw it happen to one of my roommates at BYU, when he was sent home from France. Another (current) friend, who was sent home from Australia. You can't imagine -- you just can't imagine.