The media had a field day with Jessica Simpson after recent pictures showed the pop-turned-country singer sporting a curvier physique. But that didn't stop Simpson from striking some sexy poses for the June issue of Vanity Fair. Simpson opened up to the magazine about the non-controversy about her fluctuating weight.

In honor of Women's Rider Month this May, Vanity Fair pays tribute to some of the hottest motorcycle mamas out there, including Jewel, Tricia Helfer and Jillian Michaels, who posed for a custom campaign for Harley Davidson. Go behind the scenes to see what the hog riders had to say about their passion for the open road.