Lustful Night

The next morning, I awoke very groggily.  I don't know how long the memory lasted but all I can say it was enough for me to be shaken by the mere thought of it.  It has been a total of 3 days since the incident and Princess Luna/Nightmare Moon had agreed that we both don't mention this to anypony nor anyone.  The sun shining through the stained glass window was hitting my face and that was enough to fully get me out of bed.  I grabbed my shirt and put it on to hide the marks on my body.  I stepped out of the room and stretched the stiff joints on my back and neck.  "My sister talks about you" a gentle voice said.  I cried out and turned around fast.

"Princess Celestia!" I gasped.  I quickly bowed.  Princess Celestia smiled and laughed softly.

"You may rise" she said.  I got to my feet and straightened up.  "Come take a walk with me" she ordered in a gentle tone.  She turned around and walked down the hall.  I followed close behind and walked next to her.

"Princess Luna talks about me?" I asked.  Princess Celestia nodded.

"Before she raises the moon, she tells me all about you.  How much she admires your personality." I blushed a little but quickly put on a serious look on my face.  "She even says that you and her made a deal."

"Yeah" I said with uncertainty.  "On Mondays, Tuesdays, and Wednesdays, I spend the nights with Princess Luna.  Thursdays, Fridays, and Saturdays, it's Nightmare Moon.  Sundays... She takes her pick, whether to spend the night with me as Princess Luna or Nightmare Moon."  I quickly moved to the side to avoid walking into a pillar.  Princess Celestial laughed softly.  But she quickly became serious.

"Cale?" She asked in the most serious tone she could muster.

"Yes?" I asked.

"The next question I'm going ask is extremely serious and I want you to answer me truthfully."  She stopped walking and so have I.

"I'm all ears, Your Majesty" I said respectfully.

"Has she used the Secret Spell to get to you at all?" She asked.  The Secret Spell! The magic she used to make herself anthropomorphic!  She and I also promised each other that we wouldn't mention this to anypony nor anyone.  She even placed a spell into my mind that prevented it from being read.  Princess Celestial stared at me seriously.  "Cale, I'm not going to read your mind unless you answer me truthfully."

"No, no she hasn't Your Majesty" I answered with a straight face.

"Good.  Because in case she does, I want you to stay away from her."  Even though I knew, I acted like I didn't know what it was.

"How will I know if it's the Secret Spell?"

"If she looks human but still maintains her pony features."

"What's so dangerous about the Secret Spell?" I asked.  Princess Celestia leaned a little close to me, still keeping her serious look on her face.

"It's not dangerous... It is forbidden.  Are there certain actions in your home world that's considered forbidden?"

"Yes" I answered.

"The same thing goes with the Secret Spell.  Nopony should ever use it."  She walked further down the hall but stopped.  "And Cale?" She asked as he turned to me.  "If my sister or Nightmare Moon is tempted to use the Secret Spell... Help her break that temptation."  There was a flash of light and she was gone.  I feel that there's something she's not telling me.  I have to investigate.  Luckily there's one pony who can help.  Unfortunately I have to wait until nightfall.  What the hell am I supposed to do until then?

I spoke too soon because not long after Princess Celestial left, I heard excited talks outside the castle.  Running to the nearest exit, I approached one of the excited ponies.  "What's going on?" I asked.

"A newcomer!" She answered excitedly.

"Human?" I asked.

"No! A pony!" I made my way through the crowd but as grabbed by Chase.

"Hey, did you meet the new mare?" He asked.

"What new mare?" I questioned.  Chase dragged me through the crowd and hauled to the center.

"There" he said simply.  I felt strange déjà vu with this mare,  Her coat was black as Nightmare Moon's, and her mane was as blue as Princess Luna's.  Her eyes were jade green, it was like I'm looking at a twin!  Her cutie mark was a red heart with four full moons surrounding it.

"What's her name?" I asked.

"Lustful Night" Chase answered.  "Isn't she magnificent?"

"I prefer to be with Princess Luna/Nightmare Moon though."

"Cale, you can't judge..."

"I wasn't judging.  I'm serious.  No mare can compare to Princess Luna/Nightmare Moon, does that sound fair?"

"Uh.. yes?" Chase asked.

"Good answer, mon frere."  I was about to leave when I saw Lustful Night approach us two.  Shit, now what do I do?