The sassy lass was caught on video as she pulled off her brassiere while sitting on a horse.
The video was obtained was TMZ. Proving once again that she's far from shy, Kate took one step further than other models and stripped down to her bottoms.
Raunchy: Kate Upton wears nothing but a bikini bottom and a pair of red heels.
The sassy lass was caught on video as she pulled off her jumper and brassiere while sitting astride the white steed during a recent modelling session.
