The Neapolitan Trio (Vanilla, Chocolate and Strawberry Frost) and Peanut Butter and Grape Jelly are childhood friends and are very happy to see each other again.

Second version: https://www.weasyl.com/~princessjosieriki/submissions/2153156/cuphead-childhood-friends-stick-together-v2

Cuphead (c) Chad and Jared Moldenhauer and StudioMDHR
The Neapolitan Trio, Peanut Butter, Grape Jelly, idea and artwork (c) me