[Palco Nagashima] Maso Osu Kyousei Tokkun (Web Otoko no Ko-llection! S Vol. 115)

A busty, twin-bunned crossdresser in a schoolgirl uniform takes charge of an intimate encounter with their nervous, boyish cousin, whose widened eyes, blushes, and stammering quickly shift the power balance. Their bodies move from hesitant distance to close contact as confident hands guide him, turning an awkward introduction into mutual arousal. A playful rail-sided-bed epilogue brings laughter and a promise of more experiments, replacing the opening’s nervous embarrassment with easy intimacy.