Free Undertale story/comic idea:
Set after the true pacifist ending, Undyne and Alphys are together still
But then Undyne of her own reconnaissance watches and enjoys Mew Mew Kissy Cutie 2, unaware of the first one, and unaware of Alphys' dislike of the sequel.
And gushes to Alphys about how great it is.
I mean there's no way they'd break up over it, I'm sure. But maybe Alphys would have to admit it's actually not terrible. But could also introduce Undyne to the first one
@Nine bonus points if Undyne hates the original