The "Oppai Challenge" is to take a selfie of your breasts in a populated spot. But this tanned girl gets caught while doing it....(9 base CG, 63 text variations, 39 text-less variations.)
3 schoolgirls go to a hot spring for some relaxation, but it turns out the bath is mixed gender, and some horny middle-aged men jump in too. Their fun hot spring trip becomes an orgy, they forget about the bath, and get hooked on dick!