If you've spent any time at the intersection of Haight and Pierce over the past couple of months, you’ve likely seen her.

Scantily clad in her white one-piece under-thing and gray leggings, she strikes a defiant pose on the side of the inbound Muni bus stop.

The spare advertisement - white on white with loads of negative space - practically dares passersby to deface it.

It's a dare that many, many of you appear to have accepted.

Haighteration reader Justin, who lives near the ad, writes:

[E]very day/night we get to see how creative the local "artists" get with this girl and every morning she gets cleaned up. it’s been going on for months and then finally she was gone. we thought we could breath again but all of the sudden, she was back. so we started documenting the evolution.

It's hypnotically disgusting.

Hypnotically disgusting, indeed!

(Caution: extremely juvenile, mildly-pornographic doodles abound below.)

Here are some of Justin's photos documenting what has been done to this questionably innocent lady in recent weeks.

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First, there were the innocuous scribbles:

And the extensive tagging:

There was the demonic octopus drawn with too-light ink, coupled with the classic sinister mustache/goatee combo:

There was the vulgar commentary about the fair lady's genitalia.

Oh, the genitalia. What attention it hath received.

Like, this!

And this (note the indifferent flyer for a lost dog on the left):

And of course, this:

We have to admit, at first we were a little dismayed when this ad, with its blatantly sexual commercialism, popped up in our neighborhood - but now we’re kinda digging it! It's become an ever-fresh canvas for people’s frustration, creativity, and immaturity.

Never get dressed, defiant American Apparel model. Never get dressed.