Kelly Osbourne and her mum Sharon Osbourne have always been close, and they jetted off to Sin City on Thursday to spend a girly weekend together.
In a post on her Twitter page, Kelly writes, "On the way to vegas with my Mumma... to spend Mothers day with her. I have the best mum in the world."
Updating her fans once they'd settled in, Kelly declared she'd already won cash on the slot machines - and, after using the money to buy a gift for Sharon, planned to give all her other winnings to her mother's charity, the Sharon Osbourne Colon Cancer Program.
Kelly adds, "Just won $120 on a 1 cent slot machine! I never win anything. The money I won is going towards my mums mothers day gift! But if I win any more money from the slots it's all going to my mum's colon cancer charity! On my way back down to test my luck!"