Scent is not a fetish y'all, it's biology. Plenty of good studies done on it, it's a big part of attraction even if it's subconscious for many. Women have substantially superior senses of smell too so.
That's not to say there are not people who fetishize scent, but people fetishize fucking cellophane. This is not that thing.
Also this is hot as all hell. I wish there was hentai like this. This slow burn to run away nuclear reaction has entirely melted my butter.