Scarlett Johansson has jumped on Sienna Miller's nonmanogamy gravy train, saying that humans are basically animals. While it doesn't have the same charming ring to it as Sienna's "we're all fucking animals," remember that Scarlett is widely recognized for her class and poise and will gladly leave the bestiality to barbarians like Miller.

ScarJo's in the new issue of Allure, and she cheerfully waxed poetic to the mag about her views on hippie free love and sharing her body with others:

"There does seem to be a mistaken belief out there that I am sexually available somehow, which is not to say that I'm not open-minded about sex. Yet I wouldn't say I'm a serial monogamist, either. I mean, I went through periods of time when I was, ah, single. I do think on some basic level we are animals, and by instinct we kind of breed accordingly."

In addition to alluding to deliciously loose periods in her life, Scarlett revealed that

"I get tested for HIV twice a year...one has to be socially aware. It's part of being a decent human, to be tested for STDs. It's just disgusting behavior when people don't. It's just so irresponsible."

We hear ya, Scarlett baby! We also get tested for STDs twice a year--and we're virgins! We also visit the dentist three times a year although we have no teeth and get weekly prostate screenings in spite of the whole lack of prostate thing. It's just the responsible thing to do.

Gaze upon the ScarJo: at MrSkin.com.