Rob Pattinson and Kristen Stewart Caught Making Out

Robert Pattinson and Kristen Stewart have fuelled ongoing rumours they are secretly dating after they were photographed in an intimate clinch in New York on Sunday night.

The actor was in town for the official screening of Water For Elephants, his new movie with Reese Witherspoon, and after he walked the red carpet alone, Pattinson was spotted leaving a post-premiere party with his Twilight co-star Stewart.

The actress was seen taking Pattinson's arm as they stepped into a waiting car together, and a subsequent snap appears to show them leaning in for a kiss.

The pair, who play onscreen lovers in the popular vampire franchise, has long been rumoured to be a real life couple, but both have denied the dating speculation.