I wanted to actually include Jace's sister in something...so imma give a lil bit of context. Also yes. This is a base. I've had a really crappy day and this is probably the most you'll get out of me for a while...
Anyway! Um...Yeah. So Jace was the least liked out of them both. Jace's parents always cared more or paid more attention to his sister rather than to him. They more or less hated him. Jace was a sad bean and his sister came to him when their parents weren't around and cheered him up..!! ^^

(I forgot her name so....imma just go with Jane XD)
Jane: Heyyyyyy lil broooo~ *Smiles*
Jace:..H-Hi...;-;
Jane: *frowns* Stop being sadddd! You're too much of a nerddd to be sad :3
Jace: A-Am not! Y-You butt! *Huffs and giggles8
Jane: *chuckles and pinches his cheek* Yes you are! You're my little brother, of course you're a nerd.
Jace: *Huffs and pokes his tongue out* N-N-No fair! I didn't c-chose t-t-to be the y-youngest!
Jane: Then it's just my luck :3
Jace: *Giggles*

Yup. Look at those cuties :3

Anyway!
Hope you guys liked this
See ya later bunnies~!
Baiiiiiii~~!
-AprilXx