[Siro] Kouhai-kun wa Kanari Choroi [Josou]

Chihiro shows up to hang out in a skirt and oversized sweater, claiming he started wearing girls' clothes for fun and can't stop wearing them, even off campus. When his teasing senpai catches on and pushes him down, things escalate fast—kissing leads to Chihiro pinned and trembling, his small frame overwhelmed as he's taken roughly, moaning that it feels "incredible" and too big. The contrast between Chihiro's petite, barely-developed body and his desperate, flushed reactions drives the intense, sweaty encounter.