Book of Erotic Secrets

It was a lovely night at Canterlot and almost everyone was sound a sleep. The ponies was having pleasant dreams under the night sky which has a beautiful full moon hanging out this evening. The only ones who were out were guards who were patrolling the streets for any danger and the ones who were guarding the castle.

However, the one pony who was staying up restlessly in the night was the one who rules it: Princess Luna. The princess paced back and forth within her bed chambers and constantly looking out of her balcony. She was waiting for a special guest to arrive and the wait was eating away at her nerves.

"Where is she?" Luna ask herself as she was on the verge of biting her hoof nail.

But fortunately, before Princess Luna would have to get all of her hoof nails redone, that guest had finally arrived. Flying in onto the balcony, Princess Twilight Sparkle arrives and walk into the bed chamber. Princess Luna did not notice her as she was looking out of the window on the other side, hoping that she could spot her coming. When Twilight notice the night princess was shaking with anxiety, she decided to do a small giggle and call out to her

"Hm Hm! Kept you waiting huh?"

Luna jump up with surprise when she heard a voice behind her. But when she saw it was Twilight, the surprise was turned to relief. "Oh Twilight" she said joyfully.

And then, Luna rushes over and great Twilight with a hug. Twilight accept the embrace it and she gave a tightly hug back. And then, when the two princesses had enough and break away from the hug, they gave each other a deeply loving and affectionate kiss on the lips.

"Sorry I'm late" Princess Twilight apologized. "I thought I would surprise you by coming in from the back way."

Easily noticing her obvious double entendre, Luna chuckles and remarks "Oh My Twilight! You are being risqué night it seems."

"That because I was waiting a long time to meet you on this night" Twilight replies.

Both princesses smirked but it was true. It was a long time for both mares to come together like. Not as princesses who are leading a nation, not as guardians who are protecting or growing said nation but as lovers. Lovers who share their passion for one another within the realm of dreams but knows that the experience can only be truly felt within real life.

But once these lovers had finished smiling and staring at each other dearly, they decide to move it towards the bed. As they trotting, sexually and slowly, they were eyeing each other's bodies. Twilight saw Luna's dark and mature body that looks so soft that she want to last within it's embrace. And Luna who looks at Twilight's smaller but cute body and she strongly desire to grab hold of it and never let go. When they arrive at Luna's bed, they got on top of it, slowly and sexually, and face each other. As they stare lovingly and each other's faces, they open up and chat.

"So how have you been doing Princess Luna?"

"I'm fine Princess Twilight and thank you for asking. All the ponies in Equestria are sound asleep and I made sure they are having lovely dreams."

"Wow! That was quick!" Twilight surprisingly responded. "It's only 1 o'clock and you already done for the night!?"

"Well... Only the ones who were asleep" Luna admitted. "Some of the ponies who are staying up were either doing the night shift or..."

"Or doing what were about to be doing?" Twilight cheekily remarks.

Shocked, Luna plashes and responds "Well I don't know about that but..."

But before she could finish, Twilight gave her a long and deep kiss. Surprised yet again by Twilight's forwardness but Luna quickly embraces the kiss. Their lips were locked, their tongues dancing around in each other's mouths and sweet exchanged between the both of them. They enjoy it so much, their arousal levels rose up sharply and their bodies begin to heat up. Once they were done, they stare deeply at each other's eyes and gaze upon their beautiful lover's face.

But then, in a moment that Luna didn't expect, Twilight says to her "Well then... let's not keep each other waiting."

"WHAT!"

Before Luna could respond, Twilight teleported to the lower end of the bed. She quickly pull open Luna's hind legs, revealing a rather open and wet pussy. After a moment of gazing at her target, Twilight slams her face towards Luna's crutch area and quickly licking up her vagina. A wave of pleasure swept over Luna's body as she feel Twilight digging into her.

However, Luna was reluctant and she says to her while fighting off the pleasure "Now Twilight! OH! You Know We Can't Do It... Tonight!"

Momentarily breaking away from the licking, Twilight sarcastically ask "Why?"

Luna explains that "Well it's a full moon out tonight and you know what happens once I cum."

However, Twilight reply "I remember" before digging back in and continue licking Luna's pussy.

Shocked and surprised, Luna scream out in ecstasy "YOU REMEMBER!"

Going inning and outing from licking, Twilight reveals "That right! Why else did I waited for us to meet on this specific night."

"You..."

Luna give it up best to hold back the pleasure but Twilight was too veracious on her attack. Twilight's was digging into her like a piston as it brings Luna closer to cumming. Fighting through the pleasure, Luna yell out

"NO! NO! NO! NO! NO! She Can't... Come Out!"

Taking her tongue out but stroking her pussy with her hoof, Twilight ask her "Didn't you say you are in complete control when you go into her?"

"Yes but..."

But then, Twilight went back into licking while also fondling with her hoof. Luna's best effort go in vein as she felt the pleasure that she hadn't had for a quite a while. Twilight too was getting herself quite aroused too as she try to stroke her own wet pussy. And then, When Luna went over the edge, she yells

"Augh! AUGH!........ AUGH!"

Wet juices spray out and splattered all over Twilight's face. Luna had just cum and she is now basking in the afterglow. Twilight suck up all the vagina cum that were on her and savour the sweet taste.

But then, as Luna was recovering, a sudden pulse exploded within her. Something was surging out towards the top and overflowing Luna's body. When Twilight notice dark mist emanating from Luna's body, she just smiles and says "It's time."

The black mist surge around Princess Luna and swallow her hole within a dark cloud. Dark magic flood the room as Luna was going through a metamorphoses that she had once experience before but differently. Her coat grow darker, her mane became more mistier and her iris change colour. Once the transformation was done, Luna no longer look like the loveable and acceptable princess of the night. Instead, she looks like Nightmare Moon, queen of the night.

For those who are unaware, this occurrence had happen before while one certain requirement. On the night of the full moon, dark but harmless energies pours down from the moon. Normally, nothing really happens. But if Princess Luna would happen to climax and cum while under a full moon, she would instinctively go and transform into Nightmare Moon. She is no longer evil within this state and she is in complete control of herself. However, that form brings great shame onto herself and dark energies slightly tweaks certain parts of her body and personality.

As Nightmare Moon was standing before her, Twilight didn't felt scared or fear but excitement. Her lover is in the form that she found the most attracted and she was wooing at the scene. But for Luna, or this case Nightmare Moon, she was not happy.

"Why Has You Turn Us Into This Twilight Sparkle!?" she asked angrily.

Twilight just laughs and replies "That's because this is the form that I want to see you in and I know that you are still Luna on the inside."

While Twilight try to get close and act flirty, Nightmare Moon push her aside. She was stiff and giving it all that she got to hold herself in place. She whispers "But... Now I..." She look at Twilight who for the first time within the night, looks worried. And then, like a shooting comet, Nightmare Moon push her down and lay on top of her on the bed.

"Now I Can't Hold Back!"

Nightmare Moon then give Twilight a forceful kiss. Her long slick tongue invades her mouth and touching every part within it. Twilight tasted her saliva before but know it was more sweeter and more addicting. And as Nightmare Moon wrap her arms around her and Twilight did the same, Twilight was coddled within a dark embrace that she didn't want to let go from.

And then, with the dark mist that were emanating from Nightmare's tail and main, she penetrate Twilight vagina. It was a shock to Twilight's body but when the pleasure soon came into, she quickly relax and gives into it. The mist then enters Moon's pussy too and like a two-way dildo between, she began humping Twilight and started tripping.

Twilight was in bliss and fully embracing this sex of darkness. And then, when she was getting close to cumming, the room itself was becoming darker. Twilight didn't care if she would get corrupted. She just wanted to taste this sweet, sweet pleasure.

"Augh! AUGH!........ I'M CUMMING!"

Several hours later, Princess Luna slowly opening her eyes and waking up. She feels groggy and like she was getting over and hangover. When she had a chance to look at herself, she became relieve to see that she was no longer Nightmare Moon. For a moment, Luna though that everything had gone back to normal.

But then she hears "Nightmare Moon."

Lune eyes widened when she heard that. It sounded like Twilight but there was something off about it. Something that was causing a bad chill going down her spin a leaves a heavy gut within her stomach. And when she look towards her bed, she was terrified to what she see.

It was Twilight... except that it wasn't Twilight. She had a much more darker appearance and looks like a much more eviler version then her usual self. Her wings were slick and black, her mane are standing up and waving, a large light-green mascara was emanating around her eyes and her horn and eyes were in the same colour. And within the same unnerving tone, she says to Luna

"Nightmare Moon! Midnight Sparkle Hasn't Have Enough Darkness Yet!"