Lily, who’s your chap kissing?

MATT SMITH is accustomed to canoodling with beautiful Cinderella star Lily James, 28, his girlfriend of three years — so let’s hope that she’s not the jealous type.

For the former Doctor Who actor, 34, has been pictured locking lips with a man in New York.

But it was strictly business, as Matt is on set of his new film, Mapplethorpe, in which he stars as the gay Seventies snapper Robert Mapplethorpe.

His on-screen lover, pictured above in a beige jacket, is played by John Benjamin Hickey, 54, whose own real-life partner, TV producer Jeffrey Richman, might have more reason to worry at the sight of him kissing a much younger man.