filed under: Jessica Biel

"Jessica is under a lot of pressure to stay in shape because there is so much competition among young actresses in Hollywood. Jessica loves to work out and so does Justin, but lately it seems like that's all she does. She's got an amazing body and Justin is trying to get through to her that she can afford to take some time out once in a while and have a burger, some beers and a day doing nothing."

Justin Timberlake has been shopping for an engagement ring.

The singer is planning to propose to Jessica Biel and is asking her close friends to help him choose the perfect diamond band. A pal of Jessica's told the Chicago Sun Times newspaper: "Justin has been ring shopping, and we're talking serious, major Harry Winston-type shopping here. He has been quizzing Jessica's closest pals and associates, trying to get a take on the kind of engagement rings she has admired. The only comment I ever heard Jessica make was when she complimented a mutual friend's square-cut emerald ring - when a girlfriend of ours got engaged. It was huge!"

Justin's friends claim the 'SexyBack' singer realised he wanted to take his relationship with Jessica to the next level after their busy work schedules kept them apart for long periods.

Last month, it was claimed Justin was ready to marry Jessica on the privately owned island of Mustique in the West Indies. A source said: "Justin is 27 and thinking about marriage and kids. For the first time in his life he is feeling settled and has definitely decided to pop the question to Jessica."

"I asked my trainer, 'Can you give me Jessica Biel's butt?'" the actress – who starred with Biel's beau Timberlake in last year's Black Snake Moan – tells the U.K. edition of Elle. "I want a bigger butt."

Alas, because of her tiny frame, "they said I couldn't," she laments. "Everyone wants what they can't have!"

"Justin was really taking his time looking round the rings. He made the staff get a couple out of the cabinets so he could properly look at them. He didn't buy anything but told the manager he would think about it."

"He phoned Evolution Surf and ordered a longboard with a blue, yellow and gold design. He also put in an order for a year's supply of Sex Wax. He thought it'd be fun to surprise her with a board and a trip to Hawaii to teach her how to surf!"

"It looked like the friend reached over and squeezed Jessica’s butt while Justin was looking out at the field. Jessica didn’t even flinch - but when Justin suddenly turned around, Jessica’s friend pulled her hand away."

Jessica Biel was terrified about Ben Stiller touching her breasts in their new movie.

The 25-year-old actress, who stars alongside Stiller in 'I Now Pronounce You Chuck and Larry', worked out for weeks to ensure she looked her best for the scene where the comic actor feels her boobs.

Jessica told Style magazine: "I was definitely freaked out about filming that scene where Ben has to inspect my boobs to see if they are natural. I knew it was coming, I thought, 'I've only got a month, three weeks, then two weeks.'

"I had to train pretty hard and stay on a structured diet. I don't like the word 'diet' though, I just kept my eating in check to get to a place with my body where I felt, 'OK, its cool, I can be in a movie in my underwear.' "

Jessica, who plays a lawyer hired by two New York firemen who are pretending to be gay in the film, admits she loved working with Ben.

She added: "I like Ben a lot. He is like a big brother to me. It was such fun doing the movie together."

"Jessica signed a contract that explicitly details the bare minimum fans will see - including shots of her breasts and butt."

JESSICA BIEL is dreading posing nude in her new movie POWDER BLUE, because she is terrified of stripping off in front of the film crew. The actress plays a stripper in the movie alongside Forest Whitaker and Ray Liotta, but is still unsure about baring all. She says, "I haven't decided exactly about the nudity. It's a tough one. I am considering it but it's a very scary thing to do. It definitely feels vulnerable to be naked in front of anybody let alone a film crew. And it's scary because of the internet - you don't know where it's going to end up. It's a moment that could be exploited."

Biel, 25, arrived in Amsterdam Sunday evening, and she and Timberlake, 26, holed up in The Dylan, a romantic five-star hotel.

On Monday, they arrived in Stockholm. That evening, the pair - with a 13-member entourage - ate at Stockholm's Beirut Cafι, a Lebanese restaurant. "They seemed like an ordinary couple in love," owner Elias Karroum tells PEOPLE. "They were very sweet."

Adds Karroum: "They also tried to smoke a water pipe with apple-flavored tobacco. They said they'd tried it before, but we had to show them how to do it properly."

"She truly insisted that she came with me on tour. I don't know how to say no to a pretty face. But it wasn't really a good idea. This time I'm putting the machine before everything else. Jessica met up with me in Manchester, but for Paris I told her categorically no. This tour is very important for me. I'm doing it really seriously so there's no question of playing sweethearts."