Miley Cyrus spotted ‘basically having sex’ with Kaitlynn Carter in West Hollywood club

Kaitlynn Carter’s all in on the Miley-high club.

Hours after dropping “Slide Away” — her dewy-eyed ballad presumably about her breakup with husband Liam Hemsworth — Miley Cyrus was “basically having sex” with Carter, at Soho House in West Hollywood on Friday, Page Six is told.

“They were obsessed with each other. They couldn’t keep their hands off each other,” said a spy. “They were kissing and making out everywhere. In the bathroom, at the bar, in the middle of the floor. They were basically having sex. There’s no question they’re together.”

A day after the “Wrecking Ball” singer and her actor husband announced that they were splitting after less than a year of marriage, pictures appeared online showing Cyrus and Carter canoodling on a boat on Lake Como in Italy. But until now, it wasn’t clear if the pair are an item or whether that was a one-time hookup.

“They were making out all over the place, and didn’t care who saw,” said the spy, who was left in no doubt about their itemhood.

We reported that Hemsworth was “devastated” and “blindsided” by the Como shots.

Reps didn’t comment.