(Cover) - EN Showbiz - Justin Timberlake says you need to expect pain when you fall in love.

The singer-turned-actor has dated some of the worlds most desirable women in the past, such as movie star Cameron Diaz and singer Britney Spears.

The hunk has been in his current relationship with actress Jessica Biel since 2007, and it has been reported that the beautiful star wants to marry Justin.

He says hes very happy with his love life at the moment, but admits that in the past he has been badly burned by women breaking his heart.

"I fell flat on my face several times. But that's normal. And if you love, you need to be ready for painful experiences," he told Germanys In magazine.

And even though Jessica is widely considered to be one of the most gorgeous women in Hollywood, Justin insists looks arent important to him. The talented star says he cares much more about a girls life philosophy, and whether she will be trustworthy.

"Looks are subordinate to me. I fall for a woman who has the right attitude to life. I need to be comfortable with her and also be able to trust her," he explained.

Justin says hes actually very quiet when hes not performing on stage, as he struggles with shyness. Although hes one of the worlds biggest celebrities, the star claims he has always been timid, preferring not to stand out from the crowd.

"I am actually a really shy guy and like to keep myself to myself. I am not really chatty either," he confessed. (C) Cover Media