"Princess Celestia? What are you doing here?" The sun was just beginning to set. Twilight Sparkle had expected to see one of her friends at the door, not the ruler of Equestria. The princess was wearing a pair of saddlebags, a rare sight, since she always carried what she needed in her chariot. The princess sighed. "I suppose Spike forgot to give you the letter I sent, didn't he?" The baby dragon walked sheepishly across the room and handed Twilight the letter. "Dear Twilight, I shall be visiting Ponyville over the next few days. If you don't mind, I would like to stay with you. Sincerly, Princess Celestia." What an honor! The Princess levitated a book out of her bag, which Twilight recognized as Sleepover 101, the same book she had used at her first sleepover. "Where should we start? Truth or dare, Smores... Oh! Makeovers! Come on, Twilight!" Twilight giggled. Under all that royalty, it appeared that Princess Celestia was just like any other mare. With that, she trotted over to Princess Celestia and helped her find the supplies she was despreatly looking for. Well, that works.
You're talking about the sweet, kind Celestia, right?
Because Molestia just do very fine in my opinion. I'd take Celestia in a heartbeat. If my bed could take it... I'd be too excited (nervous, happy, not sexual!) to sleep to have her by my side. I'd have a hard time not to cuddle her.
Even harder if it was Luna. Still the sun goddess deserve love. As Celestia.