Mariana didn't really hear her sister come in or call to her. She was in her room, her ears covered by headphones, and loud music drowning out everything else. She'd spend another long day at the call center, explaining to people how to fix their computer and network problems. She was pretty good at it, rarely having to refer her callers to a superior for something she couldn't handle, and endlessly patient for the really stupid calls. It was not great money, but it supported her and her younger sister, so that they didn't need to dip into the savings their parents had left them for Aliana's college tuition.
And it kept her occupied to keep from thinking about her problem. Things had been pretty under control until the last couple of years, and now Mariana was always afraid something would reveal her secret in a way to truly embarrass herself. She even kept away from Aliana as much as possible, because no one could deny her sister had grown into a lovely woman who seemed to be growing hotter each day. Mariana had been able to keep her secret from Aliana all these years, and she didn't think her sister could handle it.
At night, sometimes, however, her thoughts could wonder, and fantasies would come to her, and she'd respond. She felt almost powerless to resist those fantasies, but at least in the privacy of her room, she could indulge herself a bit. She could lay on her bed, close her eyes, and let her hands wander...