The British model was back in Blighty for the holiday, and to mark the occasion, Kelly hosted dinner at her home for her nearest and dearest.
We think she makes one super hot Easter bunny, don't you?!
Not being able to resist digging out her fancy dress while playing host, Kelly made sure to dress up for her guests, donning a cute dress, apron and bunny ears.
Alongside her photo, she told fans: "Lambs in the Oven!!! Millions of kids wrecking my house."
Sounds like she certainly had her hands full!
As well as cooking up a storm in the kitchen, the now-turned actress proved she's just as good at interior design too, laying a beautiful table with vintage inspired crockery and gorgeous daffodils taking centre stage.
Talk about the hostess with the mostess eh?!
Kelly's trip home to the UK comes after she recently made her NBC debut on US television.
Starring in the channel's new sitcom One Big Happy, Kelly made her way onto screens for the first time last month and gave fans more than they bargained for, appearing completely naked!
She joins 24 actress Elisha Cuthbert and Nick Zano on the show, playing the role of a British woman named Prudence.
One Big Happy is produced by chat show host Ellen DeGeneres and tells the tale of an American man who agrees to have a baby with his lesbian best friend. Things soon turn complicated though, as he meets the love of his life, Kelly's character Prudence, and ends up marrying her.
Following the show airing, Kelly and her co-stars celebrated with 1000 magnums of champagne!
Now that is a LOT of bubbly!
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Watch the trailer for One Big Happy here: