Why young boys lusts for older women?

Even if they date girls around their age.

The son of this coworker The son is already 19yrs old soon to be 20) lusts for me and he has a girlfriend. His girlfriend is 18 years old.

He thinks he is a hunk that all women pursues him, I heard him talking in conversations with his dad. He has even hinted me that Im a sexy woman.
Why young boys lusts for older women?
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