Having a long-legged female strut by you in high heels isn't just hypnotizing—she could be sending you "I want you now" signals.

How a woman walks can indicate how likely she is to orgasm, according to a new study in the Journal of Sexual Medicine.

When trained sexologists (what a job!) watched videos of women walking, 80 percent of the time they correctly identified which ones could reach orgasm from penile penetration alone and which ones needed clitoral stimulation to climax.

Women with greater stride length and vertebral rotation were more likely to orgasm during intercourse. Researchers say these women may be physically predisposed to having vaginal orgasms, and they may feel more confident about their sexuality and therefore walk differently.

You can tell a lot about a woman from watching her—and not just her stance. Look for these nonverbal signs to tell if she's interested. Then decode her outfit, and you can figure out if she wants you to undress her.

Once she's naked, pay attention to her body to pick up cues on what she likes and dislikes.

No matter how many studies, the female orgasm will always be a mystery. Which is why we talked to our Sex Professor, Debby Herbenick, Ph. D., and asked her our biggest O questions. Read up and submit your own. Then see about pursuing that "trained sexologist" degree.