Former reality TV star Kate Gosselin took to Instagram to share pics from a birthday celebration with her kids Alexis, Leah, Joel and Aaden.

Kate Gosselin celebrated four of her sextuplets' 21st birthdays with a rare Instagram photo of Alexis, Aaden, Leah and Joel.

Kate Gosselin’s sextuplets are 21. The reality star celebrated her children‘s milestone birthday by sharing photos via Instagram from their restaurant dinner — but two of the six were ...