JESSICA Alba was uncomfortable shooting her first sexy men’s magazine spread — because she was still a virgin.

The actress, now 35, was only 19 when her sex symbol status landed her a coveted spot in Maxim, but Alba admits she wasn’t prepared for the revealing shoot.

“My sexuality made me very uncomfortable,” the Sin City star told In Style magazine.

“I remember my first Maxim shoot. They (photographers) were telling me to pose a certain way, and I was like, ‘Agh! I’m 19. I’m a virgin. I don’t even know how to do that!’ It was so awkward.”