I swear to god I remember reading a hentai a while back but cannot for the life of me find it. Reddit would probably crucify me if I looked there so I'm opting for this slightly less organized approach

It was a yuri loli hentai, and while I can't remember a decent chunk I do know how it ends, and boy is it memorable. Essentially, it's a pair of young girls who get increasingly dangerous with their sex, culminating in one of the girls jilling off while suffocating herself to death (death was the intention) while I think maybe the other girl stabbed her? She cums, dies, and it ends with a narration text talking about how the two were found already dead and somehow, like, glued together. Inseparable. There was a point, I think, where the girl who was suffocating herself had done so earlier and was confronted by classmates, but I'm not sure if that was actually the case.

any help anons?