In bed with Kate Upton

Kate Upton in bed. Picture: Kate Upton/ Instagram

Buxom blonde Kate Upton has released a steamy photo of herself lying topless in bed.

The American swimwear model shared the photo with her million odd followers on Instagram.

"In bed with mertalas and macpiggott no filter becauseiminamazinglight," she captioned the pic.

Upton, who has been a Sports Illustrated cover girl, also replaced Katie Holmes as the new face of Bobbi Brown cosmetics.

The 22-year-old also starred in this year's romantic comedy, The Other Woman, alongside Cameron Diaz and Leslie Mann.

Last year, she set tongues wagging when when she chatted and laughed with WA-raised AFL footballer Lance 'Buddy' Franklin, who is in a relationship with Jesinta Campbell, at the Melbourne Cup Carnival.