Twilight Sparkle didn't consider what might happen when she used an "Object Possession" spell to check on her student. Now she has to live with the consequences. Forever.
After a long day, Princess Rarity's bodyguard is ready for a quiet night keeping watch over the Princess. Or, it would have been a quiet night had the Princess not decided Twilight's sleeping arrangements were 'simply unacceptable'.
Queen Rarity constantly rejected the advances of other noble ponies - after all, her bodyguard Twilight was already her secret special somepony. Unfortunately for them both, Sweetie Belle is intent on finding out who is her sister's secret crush