Robert, 23, and Emilie, 27, are shooting Remember Me, and Robert’s Twilight co-star Kristen, whom he is rumoured to be dating, was allegedly not impressed at their kissing scenes.

A source close to the pair said: “She [Kristen] knows screen kisses are part of Rob’s job, but it doesn’t make things easier, seeing sexy photos of him and Emilie in full liplock.”

A pal of Robert’s added: “Kristen saw a photo of them kissing and flipped out.”

Onlookers at the beach, where Emilie and Robert filmed the scenes, said the pair appeared to enjoy filming the scenes.

An onlooker said: “Emilie snuggled with him for at least 10 minutes. She was sitting with part of her body pressed up under his arm and they were making each other laugh.

“They’re definitely getting close – you can tell it’s more than a work relationship.”

It is claimed the pair have been spending time together off-screen as well and were said to have visited the swanky Soho House on a break from shooting.

An onlooker said: “They spent a lot of time telling jokes, laughing and whispering in each other’s ears.”

The onlooker added: “At one point Emilie took Robert’s Ray-Bans and was playfully wearing them before putting them back in his shirt pocket – it was very flirty. Rob was so sweet and attentive; if I didn’t know anything about him, I would think Emilie was his girlfriend!”

Source: Splash News