What a Doctor can "Do"

2 days later I was on my way to Canterlot to bed the co-ruler of Equestria.

I arrived on the steps of the castle wall at around noon.

“Ah, Dr. Do, Princess Luna is expecting you.” the guard at the gate said.

He took me through the gate and through the doors. He finally stopped at the throne room.

“Doctor, you are to wait here until the princess comes and gets you.” he said to me

“Yes sir” I replied casually.

I waited for about 5 minutes in the throne room before I was summoned by a night guard. The grey bat pony, a female was looking me up and down.

For Faust’s sake am I really that attractive?

We stopped at the doors to Luna’s chambers. The bat pony knocked 3 times but no answer came.

“I guess she’s just out so-” I tried to say before being cut off by the bat pony tackling me. I could feel the heat of her marehood pressed up against my sheathed cock.

“Hey, get the buck off of me!” I yelled at her.

“What’s the matter, saving it all for the princess?” the bat pony cooed

She was interrupted by a blue aura lifting her off of me.

I looked over to my right and saw Luna standing there with a stern look on her face.

“Nightrose, what have I told you about trying to bed my guests?” Luna yelled to the bat pony

“To stop your highness.” the bat pony known as Nightrose muttered.

“If you weren’t on your heat I would strip you of your duties as a guard.” Luna said

“Now off with you!” Luna said

“Yes your highness!” Nightrose said trotting away.

“Thank you Luna” I said with a hint of relief in my voice.

“No need Stan, could you check my head when we get inside my chambers so I can be sure we can continue?” Luna asked me

“With pleasure.” I replied.

We went into her chambers, they were pleasantly lit but the room itself was filled with many dark colors.

She laid down on the bed, presenting her head to me. I saw no bandage, but saw the wound had healed almost completely.

“Have you felt dizzy, nauseous, or drowsy at any point during the last few days?” I asked her.

“No, not at all” She said

“Good, then let’s get down to it.” I said

With that I went down on her, planting a long, wet, deep kiss on her lips. I moved my hoof down to her nethers and found her clit very easily. I gave it a playful flick, this made her moan into my mouth. I meanwhile, had sprung free, my engorged shaft now on her stomach. She broke off from me and looked down at it.

“Twilight is one lucky mare,” She said, with a hint of jealousy.

“She does enjoy it, can’t get enough of it” I say.

She then lifts me up with her aura, and positions me in a 69.

“Ah, so that’s the way we like it,” I grunt as she take my entire shaft in her mouth.

I return the favor by eating her out. She was flowing like a river down there so I buried my face in her nethers and began to toy at her clit with my tongue. This made her moan, sending vibrations through my dick. As I felt myself reaching an end, I stopped and stood up, moving Luna so I was prodding her entrance.

“Do it Stan, rut me until I can’t walk straight!!” Luna said, half-moaning, half-begging

I granted her request and pushed myself inside her. She was sopping wet, which meant little resistance but she clenched me really tightly. She adjusted to my length and I began to move, slowly at first, but working my way up so the slapping of our bodies was the only noise you could hear, besides her screams of pleasure.

“Luna! I’m gonna spurt!” I said

“Do it inside me Stan! I demand it!” She yells

I give it to her as she herself completely falls over the edge, her horn lighting up like a flare. I pump her full of my seed and pull out.

“By the gods, that was amazing!” Luna said, panting now.

“I agree, however...” I start to say

“I get it, it wasn’t as good as with Twilight, but then again, you two have been at it for almost a while now.” she said

“That’s the truth” I replied, blushing slightly.

“I thank you for that, you have no idea what it’s like, not being able to enjoy intercourse that often.” Luna said

“We were all virgins at one point right?” I reply, smiling.

“I can teleport you back to Twilight’s now if that’s all right?” she asked.

“That sounds fine.” I say

“Stan, before you go, I wanted to give you this,” Luna said, floating a navy-blue velvet box towards me. I open it to see a stunning diamond horn ring that clearly was meant as an engagement ring.

“Princess Luna, I’m...just...wow” I say, rendered speechless by the sheer beauty of the thing.

“It was something that Celestia had made for you. She knew you and Twilight were meant for eachother and wanted me to give it to you, our token of gratitude and appreciation.” Luna said

“Thank you Princess, I am honored.” I said, and with that...

*pop*

There I was, in the library.

“Stan? Is that you?” I heard Twilight’s voice echo from somewhere in the vast room.

“Yep, it’s me alright, now, where are you?” I asked to the air.

“Behind you.” She said, now no longer echoing but very close.

I quickly turned my body around to see Twilight standing there, looking almost ashamed.

“So, how did it go?” She said glumly

“It was fine, nowhere near as good as you though.” I said, making her blush a deep crimson.

“Twilight Sparkle. There is not another mare in the world who understands me, cares about me, or loves me as much as you do. You are the peanut butter to my jelly. There is not a single thing in the universe that would keep me away from you. I love you with all my heart and soul.” I say, but before I could continue, she ran up to me and embraced me tighly, planting a long deep kiss on my lips.

We separated and I saw she was crying.

“Are you OK?” I asked, worried that I had said the wrong thing

“Yes Stan, it’s just that nopony has ever made me feel the way that you do. You truly took the words right out of my mouth, I love you Stanley Do” Twilight almost sobbed into my shoulder.

“From now on, I will stick to you, no amount of money or looks will ever change that now. You are my one and only” I say.

With that she takes me upstairs and we fall asleep in each other's arms.