The former Pussycat Doll - who is married to model Max Rogers - gave birth to her first child in December 2014 and clearly can't bear to be parted from her for a second!
Little Willow looked good as gold while at yesterday's celebrity-studded launch of the brand new Hogwarts Express and Platform 9¾ at the Warner Bros. Studio Tour London.
Kimberly Instagrammed a photo of them together with the caption: "Willow and I taking the @wbtourLondon #hogwartzexpress tour! The set was unbelievable!!! So amazing!"
Poor Kimberly had a tough start to the year after breaking her toe in three places.
She tweeted: "A dancers worst nightmare!! A broken toe!! Argh!! Fell down the stairs, broken in 3 spots same bone - if it twists it will shatter. Oops!!"
It seems, however, she's on the road to recovery as she told Twitter fans this week she was back exercising again and training for a triathlon.
"Training continues! Second day of running since the broken metatarsal! Feels good!!!"
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