[TomCat (Keita)] Rakugakibon [Full Color]

A pushy kouhai comes to collect on orders his swimmer senpai was supposed to follow—three rings cinched tight around a bulge straining against competitive swimwear—and doesn't wait for permission before taking what's owed. Outdoors by the pool, the impatient underclassman drives into his flushed, muscular senior until both boys gasp through a messy, overlapping climax, the trapped arousal only making everything thicker and more desperate. The punchline waits back at team practice, where one forgotten ring leaves the senpai standing at full attention in front of his amused teammates.