PET NAMES??????

like it doesn’t even have to be big on the plot just for it to include it

Aww I don't have too many reccs at the top of my mind, but I actually responded to a similar topic a little while's ago so I have some!
BL
Serious Joke <- shounen ai but the ML is so forward, it's real cute
I think Hold Me Tight has cute pet names too
https://www.mangago.zone/read-manga/thirty_years_old/ <- I haven't read this one either but saw in a comment 'baby' is used hehe

Shoujo
https://www.mangago.zone/read-manga/why_are_you_doing_this_my_duke/

thankkk youuuu (๑•ㅂ•)و✧

This one tooo!! https://www.mangago.zone/read-manga/4_week_lover/ <— c: no prob no prob at all