Serena was home alone when her mother went on Holiday to the Johto Region because Serena had been there on several previous holidays she opted too not go. Little did she realise in doing so her life would never be the same Disclaimer: this story does not contain any NSFW sexual or Slitheen related content and may have a follow up sequel one day. Context: this happens pre XY anime (think round the time Ash was still in Unova) with characters aged up.
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