Big Mac Accidently Makes a Harem

Today was a busy day at Sweet Apple Acres. Both the workhorse, Big Macintosh, and the farm filly, Applejack, were out in the vast orchards of apple trees. "Darn It Big Mac! Can't cha work a little faster?" Applejack commented on her brother's slow pace.
"I'm jus' takin my time is all. It'll get done just be patient" retorted Macintosh. Applejack grunted but went back to work all the same.
For a few minutes there was silence, the kind of silence Big Mac liked to savior. He used this time to just ponder the mysteries of life like why did he feel like some unknown forces watched his realm from afar just for entertainment. His train of thought was interrupted by a bang followed by a wave of rainbows above. A blue Pegasus with a rainbow mane zipped by, doing loops and other aerial tricks.
Rainbow Dash is her name recalled Mac. One of Applejack's friends and the fastest flyer in Equestria. She came to a landing near his sister.
"Consarnit, Dash! Ya'll nearly gave mah a heart attack! When I said you could practice above the farm whenever, I didn't mean to cause explosions willy nilly." Applejack shouted at the smirking Rainbow Dash.
"Yeah but I just got to do one every session, it's my signature move. What would the Wonderbolts think if I couldn't perform my signature move properly." Spoke Rainbow as she acted out performing for her childhood heroes.
"Alright that's fine an' all but me and Mac ..." She looked to see her brother far ahead in progress due to this little talk."well...balls. Dash can I ask fer a little help in mah chores? I still got a lot to do an' I want to beat Macintosh since he's been going slow all day but still is ahead of meh somehow."
"Sure, I was going to meet up with Fluttershy today but she cancelled on me." Replied Rainbow Dash waving a hoof.
"Ahm, sorry, I didn't know yah had a date you should go I can handle." Said Applejack in a hurry, not noticing the last part of Dash's sentence.
"Nah, like I said she cancelled. Whoa whoa whoa. What do you mean by date?" Inquired Rainbow Dash.
"Well aye mean," Applejack paused seeming to try find the right words "ain't you and Shy in a relationship?"
"Are you calling me a fillyfooler?!" Shouted Dash in shock, now understanding what AJ meant by date.
Applejack seemed shock herself, "You mean all these years yuh haven't been umm... having yer barn doors swing the other way?"
"No!"
"Wow then what about yer weekly meetings with Fluttershy?"
"We're friends! Can't we just talk every once in awhile!"
"Well... Shoots! I'm sorry Dash. Now about those choirs."
"Ugh! Fine I'll help you, but if you mention anything about sexual preferences I'm out!" Rainbow Dash finished.
The two fillies begun to buck a line of apple trees, letting the fruits drop into arranged buckets at the bases of the trees. It was tedious but simple work and Rainbow Dash had time to think about her recent conversation.
"How could AJ even say such a thing! Yeah I know I'm not the most girly girl in Ponyville but I still have some charm. I could a colt if I wanted! I just happen to like hanging out with my friends more, who just happen to be all girls... damn it! Every stallion in town probably thinks I'm a lesbian how am I supposed to find a coltfriend now!"
The bucking was done and all that was left was to carry the baskets into the barn. Applejack, Rainbow, and Macintosh carried a basket each into the cellar of the barn.
"Whooey, now that was some good work. Thanks fer the help Dash, and I'm sorry about earlier." Applejack spoke walking up the stairs of the cellar
"Nah, it's okay I know you didn't mean anything by it." Rainbow Dash softly said back.
"Aye got the last one sis." Big Mac said placing down a basket of apples.
"Great! Thanks fer all yer help today I'm going to head back and wash up before dinner. You can join us if you want, Dash." Applejack stated hoping to cheer up her friend
"Nah I think I'll head home if that's all right." Dash said.
Applejack simply nodded before leaving. It was just Big Mac and Rainbow Dash in the cellar now.
"Big Mac?" Rainbow Dash suddenly broke the silence.
"Eeyup?" Macintosh replied.
"Do you think I'm pretty?"
"Eeyup."
"Really?!" Dash seemed to be shocked,"you don't think I'm too tomcoltish?"
"I think it adds to yer charm, Miz Dash." Responded Macintosh.
Rainbow Dash just stared mouth a gap and wings stiff and fully extended "Sweet Celestia. You have a way with words. Do you want to have sex?"
"Eeyup"
So it begun. Rainbow Dash mounted Mac in a cowgirl position taking in his stallionhood and moving up and down.
"Oh Yeah! I see why they call you ~BIG Mac!" Yelled Dash Mid bounce. "For Luna's sake," is all Big Mac thought.
"Mac time fer dinner" is what he would of heard if Dash wasn't screaming in pleasure as much.
In the doorway stood Applejack wet, from her shower pervert, and motionless as the scene in front of her. Dash being used to hearing things while flying looked over to her. A smile found its way onto the cyan Pegasus' face before she turned back to the red stallion underneath her, "apples" deep as it were.
"Oh yeah! Yes! Harder! Give it to me harder!" Rainbow Dash shouted in ecstasy.
"Eeyup!" Is all Macintosh said before picking up the pace.
This continued for a good twelve minutes till, with a grunt Big Mac finished. Rainbow slid off his stallion hood leaving him with a smile on his face. Telling him to call her dash proceeded to climb the stairs and leave noticing Applejack just standing there, eyes and blush being covered by her Stetson. Rainbow paused in front of her waiting for her to finally take a peak. Right before Dash took to the sky she couldn't help but to blurt out,
"Ha! I told you so!"