Game Night

by The Irish Brony

Rating: mature
Tags: Profanity, Human, Princess Luna, Original Character, My Little Pony: Friendship is Magic, Romance, Porn, Sex, Fetish
Length: 3163

Luna want's to play a game of chess with her human Zander, but with a twist. She and he will grow every time they take a piece

Luna, after learning about Celestia's stunt with her student, decides to invite her human station friend over for a "Game Night". She learns the spell and asks Zander if he wants to play a game of chess with sexy results. The rules, with the help of magic, she and he will grow every time they take a piece of the opposite person. He agrees and sexy things happen.

Kinks: Human on Mare, butt, body, and dick growth. Oral and Vaginal sex. Blow gob, and chess... yes, chess.

Published 2022-02-12 22:10:00 UTC
Last updated 2022-02-12 22:10:00 UTC

Game Night

I open the door into Princess Luna's game room. Stepping in I can see the arcade cabinets pushed to the side of the walls and the air hockey table against t the wall. Sitting in the center of the room was a table with chess on it. Luna with her beautiful night sky main and dark blue fur sits on the opposite side looking at me.

I smile and say, "Good Night Luna, how have you been?"

"We have been doing well," Luna says as I walk over. "We have arranged a special kind of game for us tonight."

"Looks like chess," I say, sitting down. Luna's smile brodens as she chukels.

"It's what the ponies today would call a frisky challenge," Luna says with much delight. I cross my arms and raise an eyebrow. "We play chess like normal, but when a piece is taken, one of us grows," Without hesitation, Luna engulfs me and her into her magic. A tingling sensation runs down my body before the magic fades. I catch my breath as Luna keeps talking. "My dear sister showed us the spell that her student Twilight created. I thought it would be fun for us to take a another step into our love life."

"So we just play chess, but whenever someone takes a piece one of us grows?" I ask, looking at the board. I was white, I get to go first. Luna nodes as she watches me move my first piece, a pawn to E4. "Let the games begin," I crack a smile as Luna looks at me with her own smile.

She moves a pawn to E5, must not be doing anything too crazy this time. I move my bishop to B5. Let's see if she knows the 4 move check. She calmly moves her queen to F6. I move the knight to F3, even before I let go of the piece she was moving her pawn to C6. I back my bishop to A4 as Luna smirks at me. She moves her knight to A6 as she gloats.

"What, don't want to see me grow?" Luna says in a gloat slash winy voice with a small pout.

"No, just figuring out an effective way to do it," I say as I move a pawn to D4. She smiles and shakes her head. She takes my pawn with her pawn from E5 to D4.

"How sad," Luna says mockingly. A blue shimmer of Luna's magic surrounds me as my body starts to tingle. My vision was covered in blue. The magic feels amazing as I grow just ever so slightly. My paints getting tight from the arousal.

"A pawn for a pawn," I say, she looks confused before I move my knight to D4, capturing her pawn. Luna smiles as the same blue magic covers her body. She lets out a sigh as she grows, while she grows she moves her knight to c5. She stops growing, now about an inch taller than she was before. I move my knight to C3 to defend my pawn from her knight. She moves a pawn to B5 as I smile wickedly.

"Time for more growth my princess," I say in a seductive tone while biting my lip, before moving my bishop to B5, capturing her pawn. She lets out a small moan as the magic returns. She grows as she retaliates with a pawn to B5. I take a sharp breath in as I start to grow. I notices that my pants were getting tighter, meaning my dick must also be getting bigger. We both sit there for a few seconds, looking at each other with a seductive smile.

I move my knight to B5, capturing her pawn. She moves her bishop to B7 as she grows a little. Her face is now flush red from the pleaser of the growth magic. Her chair starts to creak from the new pressure on it. I move a pawn to A4 as Luna moves her knight to E4 to capture my pawn from the start.

I grunt in pleaser as I grow a little again. My face feels hot as the pleaser starts to get to me. I recover and move my knight to E4 to capture her Knight. I realize too late that her bishop has a straight path to my knight. She sees it, and with a devilish smile on her face, quickly slides the bishop over to E4 and captures my Knight.

"Knight for a Knight," Luna says mockingly as we both start to grow. We both moan in pleasure as I feel my dick push hard against my paints. I hear my paints rip. I look down to see the crotch area of my paints was ripping.

"Fuck," I say before taking off all my cloths. My dick hitting the cold air, causing me to shiver. It stands at just under afoot, but with a five-inch thickness. I look over at Luna to see her eyeing my dick as she licks her lips. I see now that not only was she growing, but her rump was to.

"Well played, but it's not over," I say as I move my knight to C3 to attack her bishop. She smiles and slides her bishop to take my pawn at G2. I grunt as the magic tries to distract me. I move my rock to G1 to protect it. Luna slides her bishop back to F3, now targeting my queen.

I move my queen to D3, but she responds with a cheek by moving her queen to E6. I move my king to D2, wich in hindsight was dum as Luna checks me again by moving her queen to H6. I was in a corner, I needed a way out without sacrificing much. I move my king back and luna moves her queen down to H2 to take my pawn.

I place my arm on the table and rub my forehead, trying to ignore the pleaser of my dick and body growing. I move my rock to F1 as Luna moves her queen to E5.

"Check again," Luna says with a smug grin. " You really need to brush up on the game," I ignore her as I try to find some way out of this. Then a lightbulb goes off in my head.

"Time to choose Luna," I say, placing my knight to E4, right in front of her queen. Luna yawns and captures my knight. I let out a loud moan as my body starts to grow and the chair starts to creek. Precum spurting out of my dick from the pleaser. I move my queen to E4 without thinking. Luna lets out a moan as she captures my queen with her bishop from F3 to E4.

I let out another moan as I throw my head back and arch my back as pleaser over whelms my body. I look over to see Luna panting and grinding her legs together as she and her rump grow. We both recover and take a quick break before continuing on. I move my pawn to F4 before Luna moves her other bishop to C5.

Without thinking, I move my rock to A3 as Luna takes it with her Bishop from C5. I lean against the table as I feel my dick grow bigger. I look down to see it now at just above a foot and a half with a thickness of 9 inches. I look up at Luna with determination. She smiles like a schoolgirl at me with her elbows on the table and her head on her hoofs.

"Looks like someone's losing.." Luna pauses before saying, "Or winning, it depends on what you want."

I didn't think about it like that, if I win chess, really she might be the real winner. Moving on from the thought of her massive rump, I capture her bishop with my pawn. This causes her to shiver and moan in pleaser as her rump grows bigger, now the size of a beach ball. She moves a pawn to F6 as I move a pawn to C4. She is now red in the face, which I don't understand considering her fur color, but what ever. She moves her rock to C8 as I try and think of a way to win.

I move my rock to G1 while Luna is master bating with her hoof. "Could you not do that right now?"

"Sorry, watching you struggle and grow has made us a horny princess," Luna says in the most seductive and sweet voice I have ever heard.

Damit, why does she need to be so dam hot when she's horny?! She moves a pawn to G6 with her magic while she still pleasers herself. I move my rock to E3 as Luna takes my pawn at C4. I grunt and grit my teeth as I move my rock to capture her pawn at A7. She giggles before letting out a sigh of pleaser. She moves her rock to capture my own at A4.

Damit! I think as I start growing again. The two of us are now much bigger then the table. I'm wondering how the heck the chairs are holding us up as I move my rock to G3, or it would have been if I didn't misjudge the distance through all the pleaser shooting through my veins. Luna takes my rock with her bishop and that was the final straw.

"Fuck it!" I yell, tipping over my king as the magic starts to form around me. I grunt as me and my dick grow bigger. Luna chukels as she waches me grow. Her wings spread and stiff as wood.

"Does that mean you give up?" Luna asks.

"Yes!" I yell a little angrily. Luna smiles and stands up, pushing the chair away. She stands now twice her original height and now with two beachball-sized checks for a rump. She slowly walks over to me while swaying her massive hips. Her rump giggleing with every step she took. My eyes stay transfixed to the massive rump as Luna walks over. She wraps a hoof onto my dick. I sigh from the nice feeling of her fur against my now 2 foot long, and foot-thick dick.

"Now time to get my prize," Luna says while rubbing my dick. I moan as she picks up the pace a little. She stops and let's go. I grunt in sadness as she moves to stand in front of me. She bends over, sticking her giant rump into the air as she wraps her lips around the head of my dick. I let out a moan as she slowly plunges my dick into her warm throat. She wiggles her rump, causing it to jiggle as she finally gets to the base of my dick.

I lean back into the chair and look at her beautiful big blue rump. She starts bobbing up and down my dick, licking the sides of it wither her tong. I let out a moan with every thrust of her head and every lick her tongue does. She starts to pick up the pace, her rump giggling from the force. her tail wages happily as I feel the build-up coming. I grab her head and thrust into her mouth. She lets out a happy moan as I shot my cum into her mouth and down her throat. I slump back into my chair as Luna pulls off.

She licks her lips and moans happily as the magic starts to grow her again. Her rump plumps up as she gets taller. Her butt now like two beach balls together. She looks down at me and smiles. "How about another round?"

"Your on," I say, sitting up as she makes her way back around the table. I look down at the now small table. Luna, with out hesitation, lights up her horn and causes the table and chess board to grow to our size. Good thing the room was a decent size. She sits down at the other end of the table. Her plot slapped against the ground and caused the ground to shake a little. I do the most normal opening move ever, a pawn to E4.

She moves her pawn to E5 to block my pawn. I move my queen to H5 while she moves her queen to E7. I move my bishop to C4 as she moves the queen to F6. I smile as I move my bishop to F7, taking her pawn. She moves her hoof to her crotch as she grows. She lets out a moan as I hear wet smacking. She bits her lip as she moves her king to D8. I taker her pawn at H7 with my queen. She lets out a lustful moan as she grows bigger. She wordlessly and stupidly moves her pawn forward to B5.

"You're getting sloppy," I say as I capture her rock at H8 with my queen. She shivers and lets out a loud moan as her hips thrust. She starts growing as I hear wet plopping sounds coming from the ground. She catches her breath before responding,

"We blam the wonderful magic," She looks at me with half lided eyes and a deep red blush across her face. I feel my dick hardening as I watch her grow taller then me. I mindlessly rub my dick as Luna moves her bishop to B7. I smile and move my queen to G8 to take her knight.

"Are you throwing on purpose?" I ask as she moves her queen to D6.

"Thy must figure that out for thou's self," Luna responds cryptically as I look over the board. I use my queen to take her bishop at F8. Her tongue slips out as she smiles goofily. She moans as her rump grows bigger. Her rump is now bigger than Celestia standing up. Luna now towers above me to the point she almost hits the 12-foot tall ceiling.

She looks down at the board before saying, "Thy needs the growth magic to," She then slides her queen over to my queen at F8 and capture it. Instantly the lovely magic returns as I grow about two feet taller as my dick almost nocks the table over. Luna grows the table again to accommodate for us.

I recover and move a pawn to H4. Luna moves a knight to A6 as I move my rock to H3 to try and get it out onto the field. She moves her pawn forward to B4 as I think over a way to win. I move my rock to G3 as Luna moves her queen to G8 to protect her pawn.

Ok, plain b. I move my pawn to H5. Luna imedatly moving her queen over to H8. I move my rock to G5 to stop her from capturing my pawn. She moves her rock to c8, which confuses me, because she could have castled. I move my pawn to H6 before Luna moves her knight to C5. I start to wonder if she really was throwing the game as I capture her pawn at G7. She moves her queen down to H4.

I move a rock to capture a pawn on E5 as Luna moans again. She starts growing, her moan almost shattering the glass windows and her horn hitting the ceiling. After recovering, she moves her queen to E4 and captures a pawn. I grunt as my dick grows again and my body stretches and grows. I didn't relise, but I had mindlessly been rubbing my dick while playing.

"Pawn for a queen, really Luna?" I ask as I slid my rock to E4 and capture her queen. She has not time to answer before the magic kicks in. She now lays down as to not break threw the ceiling. Each of her butt cheeks are now the size of one of the big stained glass windows.

Without a word she captures my rock with her bishop. I slid my pawn up one and switch it out for my queen. Now her king was in check. She moves her king to E7 as I move my queen to C8 to capture her rock. She shivers as her eyes roll up into her head. Her rump now brushes the sides of the room as she fills most of the room.

Luna moves her king to F6 before I take another pawn with my queen by going down one. She moans as she moves her bishop to C6. I move my queen to D7 to capture another pawn. Her rump now pushing against the walls of the room. My mind racing with so many ways to fuck her massive rump.

"We give," Luna tips over her king. I smile and cross my arms in triumph.

"So now you give up?"

"Shut up and just fuck us already," Luna says bluntly. I look at her massive size and the little room we have left in the room.

"We might.." In a flash we are now outside on the grass of the court yard. I look around in slight stun. No pony was out here. "Need to.. ok now about the siz!!" Again, before I can respond her magic had gripped me. She grew me to a size just under her. I catch my breath as Luna turns around and presents her slit to me.

"Show us who is king of the moon," Luna says with a lustful tone. I chuckled at the cheesy joke before standing up. I grab her rump as best as I can. Her giant plush rump was much wider then me. I squished her rump in as I push my huge dick into her.

She lets out a moan in great bliss as I make it hip-deep into her pushing plot. I wiggle a bit in side of her before asking, "Fast or slow?"

"Fast," Luna says, looking back at me with a smile. I smile back before pulling out and starting my on slot of thrusts. Every thrust I do her rump giggle. I massage her rump at the same time, pushing my hands deep into her sof rump. I basically bounce my hips against her rump. She moans and shakes under my thrust, cum dripping out of her slit.

It starts building up very quickly. Her tight slit and the fast hard pounds into her with her amazing rump was becoming too much. "luna!" I yells before getting a response back,

"In me Zander!" Luna yells as I thrust into her, letting her slit milk me of my cum as I massage her wonderful plot. I slump onto her back from the hard work. She starts to grow again, her rump now way bigger then her. She was now bigger than the courtyard. I have little energy left as I drift off to sleep upon my big princess mare.