[Mugendai (Humei)] Kono Dokidoki wa Koi ja Nai (Touhou Project) [BoundaryTL]

Maribel and Renko discover their innocent study session turning into heated exploration, their innocent kissing at the Hifou hot springs leading to bold confessions of "this is embarrassing... but thanks to that..." The girls confess that even though they are both girls they wonder why their heartbeats race, trading fingering and passionate tribbing as their naked bodies slide against each other. Things become more intense as Maribel suggests they try anal, culminating in a blissful sense of overwhelming gratification from both sides.