Momo and Kuri are taking their time, to put it mildly; so much so Momo’s friends are getting a little antsy with his slow progress. Because of her frequent assertions he’s cute, Momo’s worried Kuri doesn’t see him as a man (which his friends know not to be true), so they suggest he kiss her and see if that “does the trick.”
Turns out Momo is coming down with a fever, so his friend texts Kuri with Momo’s phone and she comes, full of nervousness. The fact is, both Momo and Kuri are incredibly timid when it comes to…one another. Krui constantly hides her more intense thoughts towards him (which we’re privy to), while Kuri…does pretty much the same thing.
They cannot deny how much their hearts pound when around one another, but as we see, Momo isn’t able to quite pull the trigger, faking a feverish collapse rather than go through a first kiss that Kuri definitely would have accepted.
Still, as Chu2Koi! effectively demonstrated, every couple has it’s pace, and while Momo and Kuri’s pace may be slow for some, it shouldn’t be construed as anything other than the only pace they should be taking things: a pace they’re both comfortable with. They both love each other, so progress will be made given enough time.
Take their first-name-basis: Kuri has already started mixing in some “Shinya-kun’s”, and Momo decides in bed that he truly wants to start calling Kuri “Yuki”.
They’re both still very embarrassed to do it, but the fact they both do it, and share in that embarrassment, is a step in the right direction. The fact that hearing one another’s first names spoken by the one they love also serves as motivation to continue taking steps forward.