[Koko de Chikubi o Hitotsumami (Juurouta)] Hotspring Sex With My Male Student

A tomboyish student's admiration for his muscular, well-liked teacher steams over at a hotspring retreat where washing each other's bodies gives way to deep penetration from behind. Ryunosuke's soft, puffy nipples become the center of attention, pinched and worked until he's shivering on the edge again and again, begging to cum while his brain crackles. Tender reassurance melts into merciless teasing as the boy comes apart completely in his teacher's soapy hands.