Singer John Legend's model fiancee Chrissy Teigen has warned a photographer who took suggestive photos of her early on in her career never to publish the images - because he will find himself slapped with a hefty lawsuit.

The leggy beauty admits she was a naive young girl when she started out in the fashion industry and was lured to attend a dodgy casting call in the unnamed snapper's hotel suite.

She explains, "I was 18 years old and went to meet a photographer. I guess I should've known when he said to meet him at his hotel room. That should've been a warning sign. At 18, Chrissy was like 'Ok!'"

She only realised that wasn't the norm a year later and Teigen is adamant there would be trouble if anyone suggested such a stunt now: "I'd call some dudes and there'd be a problem."

But the model is confident the inappropriately sexy pictures will never see the light of day - because she will be ready and waiting to take legal action.

She tells the New York Daily News, "That'd be a nice lawsuit. If they come out, it is on! I dare you, mystery man."