Rumours of their relationship have been swirling for months, but things seem to be heating up between Johnny Depp and Amber Heard.

The Rum Diary co-stars are said to be so close, that Heard has been visiting Johnny regularly on the set of The Lone Ranger in New Mexico and Depp is even said to have bought his rumoured new love a horse, because he wants her to ride with him.

Earlier this week, Depp made an official announcement that he had split from his partner of 14 years, Vanessa Paradis.

The co-stars previously gushed about eachother to press, with Depp saying, “When I first saw Amber, it was like seeing an old-time movie star like Lauren Bacall.”

About Depp, Amber said to a magazine, “He’s such a wonderful presence; he is enigmatic and compelling and a true artist, seriously intelligent and incredibly sensitive. “Everybody on set respects and likes him, which says a lot about an actor. It’s a grueling job at times and the stress level that everybody feels in the industry is intense – but it doesn’t affect Johnny.

“It seems like he has time to look everybody in the eye and I like that, it was wonderful to see.”

Back in April, reports stated Depp and Heard enjoyed a trip together in Las Vegas on his private plane while Johnny was in town promoting Dark Shadows. Amber was later pictured boarding the plane the next day.