"Happy 3rd birthday Sterling Skye! You are my ! Stop growing up so fast!!" Patrick wrote in his caption. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on ...

Happy birthday, Riley Curry ... 10 years watching you blossom has been the best of the best! Now- stop growing up so fast please…..We love you ," Stephen captioned a smiling shot of Riley ...