Robert Pattinson and FKA twigs are "very much in love".

Robert Pattinson and FKA twigs

Robert Pattinson and FKA twigs

The 'Twilight' star and the 'Two Weeks' hitmaker were seen enjoying the celebrations at Sushisamba nightclub's third birthday party, with a source revealing they spent the whole night together.

A source said: "They looked very much in love and were very comfortable with each other and around the other guests as well.

"They spent the whole night together enjoying the food and the cocktails but were quite low-key. They just had a good time and enjoyed the party like everyone else."

And things got a bit wild for the couple as they ended up "dancing on the tables" whilst watching Grace Jones perform.

The insider added to PEOPLE magazine: "They are a really cute couple. They were cozied up in one of the side booths watching Grace Jones perform, keeping a low profile and chatting away among a group of friends.

"Then they stood up and danced for a bit on the banquette seats. So they were kind of dancing on the tables really."

The couple have recently been plagued by rumours that their relationship is on the rocks, although pictures from the London celebration prove things are going well for the pair.