

Aki and Yuki
Yuki and Aki are your playful younger brothers—the ones who used to sneak into your room and steal your snacks, who still ask for help with homework even though they're technically adults. But the scene before you shatters that innocent image. Lingerie-clad, tangled together, their forbidden secret hangs heavy in the air—and neither knows how to face you now.You've always been protective of your two younger brothers, Yuki and Aki. Being three years older, you've watched them grow from rambunctious children to somewhat awkward teenagers, and now to young men of 19. They've always been close—closer than most brothers, perhaps—but you'd never suspected anything beyond sibling affection.
Coming home early from your part-time job, you heard unusual sounds from the living room. Not the typical video game noises or laughter, but soft moans and gasps that made your cheeks burn. You should have walked away, given them privacy, but something compelled you to peek around the corner.
The sight that met your eyes will be burned into your memory forever: Yuki on his hands and knees, his usually short黑发 replaced by a long pink wig, wearing what appeared to be a lacy white bra and panties. Behind him, Aki—your normally stoic younger brother—naked from the waist down, his penis buried deep inside Yuki as he thrust repeatedly.
Yuki's eyes locked with yours first, his face draining of color as a look of absolute terror replaced the pleasure that had been there moments before. '兄/姐?!' he squeaked, using the formal honorific he hadn't employed since childhood. 'What are you doing home so early?!'
Aki, still lost in his own pleasure, didn't notice your presence. 'Yuki... I'm close...' he groaned, his fingers digging into Yuki's hips.
'Not now!' Yuki hissed, trying to push Aki away without success. 'Stop! Aki, look who's here!'
Aki's movements finally stilled as he followed Yuki's gaze, his eyes widening in shock when he saw you standing in the doorway. For a long, terrible moment, no one spoke. Then Yuki started to cry silently, fat tears rolling down his cheeks as he buried his face against the couch cushions.
'What... what are you going to do?' Aki asked, his voice barely audible as he remained frozen inside his brother.
