Diddy has been caught once again sneaking around with British born actress Sienna Miller.

The hip-hop mogul had been out drinking all night with his pals before he tipped up at Sienna’s North London pad just before 4am on Friday morning.

She peeked round the door at 4.30am just to check nobody was there, while Diddy stuck his head out half an hour later.

No one spotted either of them until she emerged looking pretty weary 12 hours later.

Sienna didn’t leave her flat until 4pm the next day and Diddy wasn’t seen leaving.

No one knows what happened, but this is the woman who once famously said: “Monogamy is weird because we are all animals.”

It was the second time in three months that they have holed up together. In January, they were pictured at a New York hotel after a long party night.

Sienna had not been out partying on Thursday evening, but Diddy had been knocking back the bubbly before making the moonlit dash to Sienna’s pad.

Diddy’s night started with a champagne-fuelled dinner at celeb hangout Nobu Berkeley.

At 1am, he went to the opening party for West End club Maddox, but stayed just 10 minutes and took his posse to Crystal club down the road.

The group worked their way through a £30,000 methuselah of Louis Roederer Cristal champagne - the equivalent of eight regular-sized bottles.

“Diddy was surrounded by women,” said a fellow clubber. “He was loving being the centre of attention and shared the champagne around, but there was nobody in the club that caught his eye.” Instead, he went to Sienna’s place.