Kate Hudson's kids are growing up fast - too fast!The star, 41, shared a photo of her kids in the kitchen of her LA home on Instagram and her fans couldn't get over her teenage son, Ryder.MORE: Kate Hudson's super-messy bathroom inside LA mansion will leave you speechless The 16-year-old and his younger brother, Bingham, nine, were helping their famous mum put the shopping away in the photo shared for a charitable reason. WATCH: Kate Hudson and lookalike son Ryder create hilarious cooking