A Californian college student has kiss-and-told about a night he spent with Britney Spears last month.

Matt Encinias told Us Weekly that he signed up as an extra for the video for Britney’s comeback single and while the video shoot didn’t go quite according to plan, he was amongst a small group of male extras handpicked by Britney’s assistant to keep the star company at a local hotel afterwards.

According to Matt, Britney arranged to have the rooftop pool at the Standard Downtown hotel opened around 2am for the exclusive use of her group. He told the magazine that the singer, who was drinking mojitos and Jack Daniels, then instigated an alcohol-fuelled game of ‘Truth or Dare’, with Matt explaining: “I was dared to get naked and get out of the pool and walk as though I was on a catwalk in a fashion show. Britney was laughing really hard.”

“Britney was the first one to undress, and then everyone else followed. I turned around and saw that she was topless and she had fake tattoos of flowers on her nipples from the shoot.”

“She went into the pool topless - her boobs were exposed and she had a drink in her hand and a hat on with sunglasses.”

“She straddled me and put her legs around me. When I started kissing her I did everything in my power - from my previous experience of kissing girls - not to mess it up.”

“Britney had more drinks - she was having Jack and more mojitos in between me feeling her up, her boobs, and kissing her on her neck.”

“Her body was very nice. It was sexual and sensual kissing. It took some effort to perfect. She is a great kisser - I’d actually say a phenomenal kisser.”

He claims he was then invited back to her hotel room at around 4am but has denied having sex with the singer, saying a bodyguard ended the party by ordering Matt to take one of his drunken friends home: “I went in[to the hotel room] and found Britney lying on the bed with her knees up and just a pair of pink panties on.”

“I was told all she wanted to do that night was kiss a boy. And that’s what she did. Mission accomplished.”

In related news, Britney reportedly displayed unusual behaviour at another magazine photoshoot - but then backed out of giving the accompanying interview.

Allure magazine’s editor Linda Wells explained: “Britney showed up for Allure’s cover shoot on time and ready to work. She was entirely unselfconscious.”

“She took off her wig and then stripped down to the waist, for no apparent reason, before sitting for hair and makeup.”

“She was agreeable and co-operative but that was the last we saw of her… she missed four appointments for an interview.”