In Gemma and Arg’s first interview as boyfriend and girlfriend the TOWIE couple tell this week’s heat: “We had sex for the first time to the backstreet boys.”

The pair who also did their first photo shoot as a couple with heat, said: “There’s been a lot of speculation but we want to show people it’s real.”

Gemma: “I think it’s been obvious I’ve liked him for ages.”

Arg: “She gets really shy around me now. Sometimes when I look at her she says ‘stop looking at me’.”

Commenting on their weight issues. Arg said: “I think both me and her would lose ourselves if we lost weight – if she wasn’t big bubbly Gemma people wouldn’t relate to her as much and I love her as she is. When I lost weight I got all cocky.” Gemma added: “Of course I’d like a miracle pill to make me a size 14 but I’m happy as I am and know it suits me.”

Asked what it was like when Arg saw her naked for the first time. Gemma revealed: “I was self-conscious, even though I can be confident I do get a bit shy in front of him sometimes.”

Arg: “I think she’s a beautiful girl, very sexy and I love her curves.”

Speaking about their first sexual encounter. Arg grinned: “It was in Marbella the night after after she’d done her big dramatic bit about me not getting ‘this candy’. I said “will you come back to my hotel room?” I knew she was going to come – she was trying to play it cool.” Gemma added: “I was nervous because something was just different. I was thinking “am I doing the right thing here?” He was very persuasive.”

Arg: “We had a couple of drinks but we weren’t drunk (giggles). We got to my hotel room and she made me go downstairs and get her a brandy and coke. I came upstairs and she’s lying in bed in her silk and lace…” Gemma: “I’ve always got nice underwear on – I don’t mess about.”

Arg: “And she was playing the Backstreet Boys! It was magic.”

Gemma: “He’s perfect. We’ve just got that chemistry. We’re like magnets.” Arg: “It’s the best sex I’ve ever had.”

The full interview appears in this week’s heat magazine, on sale now.