Kate Upton bares all for Sports Illustrated photoshoot

Kate Upton has gone naked and showed off her sexy body in the new Sports Illustrated shoot.

The 21-year-old model has painted a pair of pants and shown her actual bare bum in the swimsuit issue photo shoot, Mirror.co.uk reported.

Upton had recently expressed that she had the best-time shooting alongside Leslie Mann and Cameron Diaz in the flick 'The Other Woman'.