Jessica Alba says men really do prefer blonds.The natural brunette died her hair blonds for hit films 'Fantastic Four' and 'Sin City' and immediately noticed how much more attention she attracted. Jessica told Elle magazine: "People pay attention to blonds far more than they do to brunettes."I definitely got checked out three times for every once I do with my regular hair color."The screen beauty doesn't like men drooling over her or playing sexual roles, despite the fact many young Hollywood actresses aspire to it. She said: "A lot of young women push to be tarts more than maternal figures. My character in 'Fantastic Four', Sue Storm, is young but she takes care of the boys and keeps her family together. I also like that she's intelligent."A lot of comic book women are damsels in distress or evil rather than heroes, and they're usually sexed up."Being objectified like that is not something I'll ever get used to."It's fun to play the role, and I know that it's pure fantasy, but I still get anxious."