I've been wearing medium sized Calvin Klein briefs forever, but the recent pair was tight, why?

I still work out the same, and eat the same, is this an error from Calvin?|||Erm.. Simplest answer: You've grown?


(:|||I think you need to change your underwear more often!


Wearing them forever isn't a healthy or hygienicc habit


=P|||Either the pants got smaller or your *** got bigger :)





(Go with the *** thing it'll boost your ego)|||Either you've grown or they've shrunk. Maybe you accidentally put on your girlfriend's briefs? That would explain it...|||You've gained a bit in the penis department or your waist is a bit bigger|||Maybe you got a smaller size or you got bigger down there|||Maybe they shrunk a little in the wash otherwise your derriere has grown :)|||They shrunk in the wash|||ur butt muscles have got bigger :L|||LAY OFF THE GYM....or the steroids....which ever one you're doing!!!!