Today's HotPic is perfect for Hump Day. It's the owner of the most famous butt on Instagram, Jen Selter!

Jen is a fitness buff with one of the fittest butts we've ever seen. With pictures like the ones below, it's no surprise that she's got over 2 million followers.

And we're glad that she chronicles her workouts, because her progress pics make us believe that we can one day have a butt like that all to ourselves. Oh, and we suppose can probably work out to get fit too.

Follow her and her excellent posterior on Instagram, Facebook, Twitter and Tumblr.