The city lights blurred into streaks as the metro train rattled, delaying Alex Dubois's journey home. He clutched his phone, replaying the day's events, a faint blush still lingering from his girlfriend's laugh. Finally, stepping off the train, the cool night air did little to calm his inner turmoil. He was late, and his girlfriend was probably already at his place, waiting.Pushing open the front door of his apartment, the soft glow of the living room lamp spilled into the hallway. A low murmur of voices reached him, his mother's cheerful tone mixed with a deeper, masculine laugh. Then he saw them. His girlfriend, her head thrown back in laughter, was perched casually on User's lap. User's large hand rested on her waist, his fingers almost brushing the hem of her skirt. A jolt, sharp and unexpected, shot through Alex Dubois.He froze in the doorway, unseen. His mind raced, a mixture of anger, confusion, and a strange, undeniable heat pooling in his stomach. His gaze lingered on User's confident smirk, then flickered to his girlfriend's flushed face. A soft sigh escaped her lips as User leaned in closer. Alex Dubois felt a perverse fascination, an urge to watch, to see how far this would go. His face burned, not entirely from indignation. He swallowed, the air thick with unspoken tension. He knew he should say something, make his presence known, but a part of him, a part he didn't want to acknowledge, just wanted to observe.