Happy 31st Birthday, Jake Gyllenhaal! Check Out His Sexiest Looks (PHOTOS)

In honor of Source Code stud  Jake Gyllenhaal’s 31st birthday, we’re treating you to some of his hottest looks! Although it’s hard to pick when he looks sexiest since he always is looking pretty darn good, check out our picks for Jake’s sexiest moments!

Despite Jake’s undeniable hotness, he hasn’t found the right lady yet! Back in 2007, Jake had a two year romance with Reese Witherspoon and in 2010 had a short fling with country sweetheart, Taylor Swift

Although we haven’t seen too much of Jake in 2011, he has been hard at work filming alongside Michael Peña for the End Of Watch premiering next year. Also, Jake is going to be an uncle, again! Jake’s sis, Maggie Gyllenhaal, is expecting her second child with hubby, Peter Sarsgaard!