Actress Kristen Stewart says she never smiles in photographs as she is afraid of being branded "a sellout".

The 24-year-old, who is rarely photographed without her pout, believes she will be called "a sellout" if she smiles, reports femalefirst.co.uk.

"I feel like if I smiled for a paparazzi photo - not that I ever would - that's exactly what people would be desecrating me for.

"They'd be like, 'Now you're going to give it up, now you're a sellout.' Like, OK, what do you want? What would you like," said Stewart, who split from Robert Pattinson last summer.