You and your domme are committed enough now that you have to play simple “boyfriend and girlfriend” for a long weekend stay with your parents. Your domme is always thinking about how to best use any situation for training you. Up to now, she's been training your butt to get ready for her strap-on with simple buttplugs, but now, with whole days of pretending to be nothing more than quaint vanilla types to look forward to, she thinks it’ll be fun to start transitioning you at bedtime with a trainer dildo designed specifically for anal. And what a domme wants, a domme gets. At least you can feel reassured that this is as much a tease for you under the circumstances that it is for her.