The whole setup is a window. Not a metaphorical one, a literal window frame on your screen with a girl stuck in it, tits pressed against the glass like she's trying to escape a sauna. And you're there with a cursor that's basically your hand. The game doesn't pretend to be anything else. You poke, you prod, you rub circles on her ass and breasts while some blue bar fills up way too fast if you're not paying attention. It's like trying to defuse a bomb but the bomb is horny and the wires are nipples.
I spent way too long figuring out the rhythm. The blue meter is basically her patience or maybe her discomfort, hard to tell. It creeps up when you go straight for the obvious spots. But if you alternate, caress her tits for a bit, then grab her ass, the red meter climbs. That red meter is your permission slip to escalate. Get it high enough and suddenly you can peel off her top, then her skirt, then introduce a dildo that looks like it was designed by someone who's only seen sex toys in police evidence photos. The art style is this rough anime thing, lines not quite clean, proportions that make no anatomical sense. Her breasts are enormous in a way that defies physics but honestly that's the point. The whole thing feels like a Flash game from 2006 that somehow survived the browser apocalypse.
The dildo mechanics are where it gets properly explicit. Once you've got her stripped down, you can angle the toy against her pussy and the game gives you this wet, squelching