Jessica greets Krystal a Happy Birthday

Greeting her sister, f(x)'s Krystal who celebrated her birthday on October 24, here is Jessica who sweetly expressed, "Happy Birthday my sis~ I love you a lot.  Happy birthday my dearest sis ^^ There was a time when i used to be... Taller than you!".

Along with that was their cute childhood photo which you can see below~

♥ More of Jessica's updates here

Credits:
Jessica's Weibo