Playboy model shows butt cheek bruise from backside tee (VIDEO/PHOTO)

At first, Playboy model Liz Dickson's lawsuit for bruising her butt — after someone teed a golf ball from her rear end at a Playboy event — seemed a little asinine.  But now TMZ has released video of the golf shot and photos of the resulting black-and-blue cheeks and it's pretty nasty.

Dickson is suing Playboy for more than $500,000, claiming she was badly injured at a Playboy golf tournament in L.A. back in 2012 — after she was asked to lie on her stomach with a tee between her butt cheeks — while comedian Kevin Klein took a golf swing, reported TMZ.

First mistake, letting a hack comedian take a whack with the club since, for a couple of beers more, they could have landed John Daly.

The video shows trouble in the making — but the photo evidence tells the real story.

In addition to the giant welt, Dickson's attorney told the gossip site the model damaged her hip ligaments and nerves as a result of the accident. He also says she's incurred more than $33,000 in medical bills so far — and still feels numbness and tingling in her right leg.

Now maybe she can buy some common sense.

Calls to Playboy were not returned to TMZ.