Like flies on shit

When something or someone is very attractive, they attract a lot of people. Like flies are attracted to shit.

Person 1: “Did you see how fine our new coworker is?”
Person 2: “Yeah. People all over her already like flies on shit.”

ragyo

A rainbow milf who plans to take over the world through clothing terrorisim and sexually violates her daughters. A Ragyo is never a good thing to encounter.
She is also the villain in Kill la Kill.

Clyde: "Hey Betty, did you hear about the woman who got arrested by the FBI yesterday?"
Betty: "Sure did. That woman was a Ragyo. One of the worst beasts to ever be spawned from hell."