I found this in another rp book I was reading and I really like the ship now-

1) The brothers are secretly dating due to their parents, and they always act like brothers (Hugging, "I love you"'s, usual brother stuff-) but when no one else is around is when they make out and shizz-

2) (NaJ) A few months after Ink and Error finally get married and after PJ (maybe Cil for extra ideas-) and Error move in, Goth breaks up with Palette and PJ finds out that Fresh is cheating on him with (random character). Since they're "brothers" now, the two vent to each other and get closer and friends and eventually decide to get together