Princess Luna and Kelly, an illustration for “Crossing the Trixie Bridge” fanfiction 'Kelly finished stripping down and stepped into a bubble bath that might as well have been bigger than Luna’s bed. "Sorry again about everything back there. Between the mess we made, the melted ice, and however much of Mac's apple sauce sloshed outta me, I figured the Bacardi would have covered it all up." Luna extended a hoof and helped Kelly down the steps of the tub. Yes, that's how big her bathtub was. "You need not worry. Tis my fault for requesting to join your Mile High Club. Easy goes it dear." With her lovely lady now safely seated, she could take a little more time to relax before she would actually be needed for the evening. "You are very quick to find such resourceful methods. That orange-flavored rum was all the guards could detect when they opened the door for us." Such optimism was adorable on Luna, and Kelly adored it. "No, Moon Butt. No rum in the world makes ponies act like that. It just made it easier to lie about." Luna scooped up some extra suds on the tip of her wings and adorned them upon Kelly's head like a crown, making her giggle childishly at her own antics. "My guards are not ones to ask unnecessary questions or gossip. They trust me to tell them what secrets they need to know and what goings-on are for me alone." Their relaxing moments of bathing were suddenly interrupted by the arching doors flinging open by one angry princess of the sun. No cordial greetings were given as she marched herself in uninvited. "Luna! Where have you been? Not only are you late, you've had me running all over Canterlot and my own castle ensuring every creature is welcomed and-are you taking a bath with Kelly?" Apparently, the crown of suds had masked her presence enough that Celestia had missed her, at least for a moment.' Source: https://www.fimfiction.net/story/418881/crossing-the-trixie-bridge