Right, so the whole thing is called Biffy the Vampire. Not Buffy. Biffy. That's not a typo, that's the name they went with, probably for legal reasons but also because it's funny to think about some undead chick named Biffy. The game loads and it's just her. Big tits, fangs, the whole deal. She's standing there with this little smirk and you immediately know what's on the menu.
The animation is honestly kinda jank, like a Flash thing from 2006 that someone forgot to finish. The boobs don't really bounce so much as they just... float? It's hard to explain. But you get this slider bar on the side that controls the speed, and when you drag that thing all the way up she goes from a lazy handjob pace to this frantic jackhammer motion that looks absolutely ridiculous. I spent way too long just flicking that slider back and forth, making her go slow, then BAM, then slow again. For a game that's basically a looped animation, the speed control gives it more replay value than it deserves. The blowjob scene has this weird detail where her cheeks puff out a bit, like she's holding soup in her mouth. It's bizarre. I kept watching it trying to figure out if it was a bug.
There's a sex tape angle too, which you'd think would be the main selling point but honestly I forgot about it until just now. The cake tag? No idea. Maybe it's a reference to something, maybe I missed it, maybe the dev just likes cake. The whole aesthetic is this wonderfully unpolished mess where her vampire makeup is just really dark eyeshadow and the lighting makes everything look slightly green. Like you're doing it in a basement with a dying fluorescent bulb. That's not a complaint.