>>96632241She's always been more BFFs/sisters with Doki and never especially horny with her. Doki's always been like the one person she limits her sex jokes with and I don't think she's ever intentionally made a sex joke about being with her, either. Instead, they bicker and laugh about pretty much everything else. Height jokes, dumb jokes, gaslighting, trolling in-game, etc.
Meanwhile, with pretty much all of the other girls, she's constantly making jokes about plapping them, motorboating them, nudity, idols they want to bang, etc. It's not exactly superficial, but their chemistry feels... limited?
You could make the argument that Doki brings out the sides of Mint that nobody else is really able to tap into. She's a true friend and equal rather than an idol to support/idolize
which is why we love seeing them fuck in fanart 
