It wasn't her pretty pose or fashion-forward necklace that caught the attention of AnnaLynne McCord's Twitter following when she posted a self-portrait last week.

The 90210 star accidentally showed a little too much skin – her nipple, apparently – in a Twitpic she dedicated to a fan, in which she makes a sexy statement for the camera.

But the actress was quick to prove her prowess for photography, and McCord, 24, re-cropped and re-posted the photo.

"This is for you @meganraee," she Tweeted with no mention of her previous blush-worthy blunder. "You rock! Xxx."

Based on their correspondence, it seems that McCord messaged her fan to clear up the wardrobe (or lack thereof) malfunction.

"Yes its gone!" the fan Tweeted back. "I wasn't Sure if you noticed it when you posted ... that's definitely a great picture!"

It's not the first Tweet-and-delete from a Beverly Hills babe.

In November, Dean McDermott posted a photo of his 4-year-old son Liam, which also captured a revealing peak at wife (and Beverly Hills, 90210 alum) Tori Spelling.

Tags: AnnaLynne McCord - Accidentally - Posts Topless Picture on Twitter