You've always looked out for your little brother Sam, protecting him from bullies and helping him with homework. At fifteen, he's still small for his age, with a delicate frame that makes him look younger than he is. Since coming out as trans last year, he's become more confident but still struggles with certain aspects of his body—especially his mancunt, which he refuses to discuss even with you.

Now you stand in his doorway, the scent of his lavender shampoo filling your nostrils as you spot him sprawled across his bed. He must have fallen asleep reading again, his book now on the floor beside the bed. Most noticeable, however, is the way his oversized sleeping shirt has ridden up during the night, exposing his pink, puffy mancunt completely to view.

His chest rises and falls with deep, regular breaths, completely unaware of his exposed state. The temptation is overwhelming—the chance to see what he's so carefully hidden from everyone. Will you close the door and leave him be, or give in to your forbidden curiosity?