Kelly Osbourne's Sunburn Marks Look Extremely Uncomfortable!

OUCH!
With the weather heating up, we know our favorite celebs are taking to the beaches and pools to soak up the sun, but when we saw Kelly Osbourne and her terrible sunburn, all we could think about is why she didn’t put on any dang sunblock???
In the pic (above), Miz O showed us her very red skin in a topless shot, and because she knew she did wrong, she tweeted: