[Nagashiro Rouge] Kaichou to Fukukaichou no Fujun na Otsukiai Ch. 2.5

Mado-kacchi, the club's student council president, confronts her eager underclassman Miyuki-senpai in a charged encounter where the older girl struggles to contain her arousal while using a used pair of earphones as an improvised toy. The younger girl's trembling need, breathless gasps, and desperate pleas of "It's an unrequited love so please allow me at least this much" build toward a messy, climax-filled release that leaves the responsible upperclassman flushed with guilt and pleasure.