SNOS327 — I Want to Dive Straight Into My Prim Stepsister's Accidental Panty Flashes. New Year With My Cute (Adult) Stepsister —
New Year, just me and my stepsister. Stepsister or not, we've lived together for years. I was told to help her study for an important exam while we're alone, but... look... how do I put this... saying this out loud kind of ends my authority as her older brother, doesn't it. It's just, she's so cute, and one of these days she'll bring a boyfriend home and I'll have to be the gracious big brother about it. That's the plan. That's supposed to be the plan. But there's the male instinct to deal with, and apparently my friends have noticed her too, and honestly — stop leaving me alone in a room with Nanoka. I can't do it any more. Sorry, Nanoka. I'm not your brother, I'm a man, and I can see your underwear between your thighs. Her brother loses it over one flash, and innocent Nanoka can't hide how thrown she is — what happened to the kind big brother she knew? Panties peeking out from deep under a skirt with no idea it's happening. Panties from below when she stretches up. Panties from a leg thrown wide open mid-video-game. Panties through a gap while she sleeps. Panties showing colour under a skirt as she sits down. Every angle, and he looks at every one. What starts with underwear turns into nervous, pounding sex between a pure young woman and the stepbrother who's completely out of his depth. It's the panty flashes' fault. It has to be.
