Looking for a story where daughter brings home to dad a naive classmate

[PornyAlt]

Hi, I remember reading the beginning (I think it was the first chapter of a multi chapter story, not entirely sure) of a story where a daughter, with the excuse of studying together or something, brings home a naive classmate for a stayover, but in reality she was a target to be included in sex games with her and her dad, with BDSM themes, the first night I think they blindfolded and touched her, nothing particularly outrageous, but it probably escalated from there. Does anyone remember a similar story? I tried googling and searching the site with different keywords but I got nothing, I'm starting to think it was deleted...