Artist Places:
https://www.deviantart.com/windmilllurker333
https://animeotk.com/gallery/showgallery.php/cat/784

Not sure why anything Western immediately gets downvoted to oblivion on this site regardless of quality. The writing and art here honestly seem decent.
Granted, I'm not too familiar with Deltarune, so I can't say how in-character everyone here is. But this is (probably gonna be) porn, so... eh.

Base +7, dacd +6, Rolomir +6, LibraryLass +6, Ninemillion +10, BuiQ +7, thereallyweirdguy +6, AUsuario2 +7, darkbiden +6, Jomamma64 +6, nunyaetch +4, AdurnaNagra +6, Canilash +7, and 10 more...

As a Deltarune fan the writing is good for each character.

Base +7, masterreviewer1000 +25, LuiLama +6, Canilash +7, BuiQ +7, SantiMar19 +9, Seltzer +6, nad +6, qawzsexdrcft +6, AUsuario2 +7