>>9041927
>What are those two stories featuring erotic navel play?
Well since you asked, full warning both contain popping endings. They are "should've read the fine print" and "The Splash Zone (IBW#3)" by Squirbly. I know popping isn't to everyone's taste but squirbly doesn't take a grim tone with them, popping is sort of treated as semi common incidence.
Another story I really like is "Popping the Halloween Cherry" by hrpondo also containing pop ending if you guessed.

I mean, I guess I get fat shaming as a kink if your gf is into it or ok with it(an incredibly rare occurrence I imagine) but the rest of that is wild.

And much thanks for the recommendations.