Jessica Biel

Rarely do I think Jessica Biel looks hot while walking her dogs, but this time is an exception!

Justin Timberlake's girlfriend is sexy 24/7, admittedly, but typically only looks pretty on the red carpet. In real life, she looks either tough, annoyed or...muscular.

If that Brit/Justin/Jess running into each other at a restaurant story is true, you know Brit would be intimidated by Jess' upper arms - the girl has man-shoulders!