Khloe took to Instagram to share a romantic shot of her and French at a beach along with a heartfelt message, reported Ace Showbiz.
"Happy birthday baby boy! In only a short amount of time we have created timeless memories. Happy birthday to a man who genuinely lives life to its fullest. 'What's understood doesn't need to be explained.' @frenchmontana I can't wait to celebrate life with you tonight! You deserve it," she wrote.
Khloe and French split in September after eight months of dating.