J+k

Means there going to be together for a long time. Probably get married in there 20s or have kids or live In a old folks him together live a happy life an it won't be another teen romance movie it will be a kids romance movie

Jaxon: wanna go out?

Kath: sure

Jaxon: will u marry me?

Kath: sure

Jaxon:Let's have kids one day?

Kath: sure = j+k