How can I politely suggest that my friend stop being such a h**?

A friend of mine (a little younger) seems to be headed down a bad life path where her exchanges with guys is concerned. To be blunt, she's really acting like some random little chippy. She's someone with kids, etc. who should be setting a good example for them rather than behaving this way. As a friend, I'm trying to find a nice way to suggest that she change course and not toss herself at every guy who approaches her, taking them home, exposing her kids to these random guys, etc. Suggestions?

MIND YOU: I just want actual, polite suggestions on what to say to this one. I don't want to read through rants about women, "old people" and whatnot.

How can I politely suggest that my friend stop being such a h**?
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