Getting through the workweek is hard, which is why we're throwing you a bone with ten hot celebrity erections! We love any and all parts of the male anatomy, but between you me and Dupree, there's something about a big rock-hard penis that tops everything else. Don't believe us? Then you, sir, might not have seen '90s hunk Francesco Casale's penis as it fills out as he gets increasingly horny in the bathroom, in The Voyeur. And maybe you haven't seen the porn star documentary Kink, produced by James Franco herself. Here John Magnum shows off his magnum-sized hard penis while standing completely nude! Franco's always been a dirty boy. If you're jonesing for some johnsons, then hit the top ten gallery below!