A/N: hey this y'all might not like much. It might be another long ass chapter but hopefully you guys will like it. Read my darlings!

Rainbow Dash couldn't believe Sunset Shimmer has been in her house this whole time barley getting out to see everyone. Her job as a teacher is going bad if she doesn't attend there soon.
She walked until she finally found her house looking real quiet. It was kinda creepy. She walked towards and knocked three times.
"Sunset Shimmer?" She called for her.
No respond and the door never opened.
"Sunset Shimmer, it's me Rainbow Dash."
Still nothing.
She hated to do this, but she felt she had no choice but to knock the door down with her foot. She walked in and it looked the same. Normal and quiet.
When she got close to the living room, she found Sunset Shimmer on the couch staring at the TV. She looked so lonely.
She walked towards the couch and found Sunset not looking at her. She continued to stare at the TV. "Uh, hey Sunset Shimmer." She said trying to get her attention. "Sorry. I kinda broke your door."
"I could care less about my door and more less about my broken heart." She said in a low tone.
This break up with her and Twilight must have been pretty bad. She looked like she hadn't eaten in days.
Rainbow Dash at next to Sunset Shimmer and said "What happen with you and Twilight? You and her were so close and perfect. What cause you two to break?"
Sunset Shimmer was quiet for a moment and took a glance at Rainbow. Then she looked away and whimpered. When she looked back up, she showed Rainbow her tears that were falling down her cheeks.
"It was all my fault." She said. "I was desperate."

(Flashback..)

Pinkie's party was off the hook. Everyone was having a blast and fun. Pinkie and her friends were already at the party having fun.
Rarity just arrived with Applebloom, Scootaloo, and Sweetie Belle. "Now remember girls," she said. "Do not talk to strangers, do not eat or drink stuff that your never seen before, and have fun." She left them by theirselves so she can find her friends. But her first friend she saw was Sunset Shimmer.
She was sitting in a chair all by herself looking at her book so sad. She walked towards her and said "Everything alright darling?"
"Not really Rarity." She said sad. "Twilight hasn't written me back or anything. And she said she would be back in time but she never did. I just want her hear cause I'm going crazy."
"Oh Sunset it will be okay. You know Twilight has responsibilities as a princess pony in Equestria."
"I know, but I just wanna know if she'll be okay. And to know if we're still one."
"Honey you know your both one. You can nene be forget that. Now quit moping and party!" She join the crowd dancing.
Sunset Shimmer remain still sitting and looking at her book. She had tears reach her eyes. She loves Twilight so much and she doesn't want to lose her or make a mistake.
"Hey Sunset."
She looked up and saw Flash Sentry looking down at her. She whip them away and look back at him. "Hey Flash."
"You okay?"
"Yeah. I just... I miss Twilight a lot."
He decided to sit next to her and look at her to talk to her. "You and her were a great couple and friends huh?"
"That's what I believe. But she never writes back, it makes me wonder..." She didn't want to believe the words she was going to say.
Flash saw how everyone was being loud and was dancing a lot. So he asked "You want to talk somewhere private?"
She agreed since she couldn't take the loud noises and follow him up to a bedroom that was empty. They both sat on the bed silent.
"And hey," he said able to talk normal at least. "Don't you worry. I bet Twilight is fine. She's one of the most nicest girls ever and you know it too. I'm sure she'll come back and will make you happy again."
"Not sure. She never talks to me anymore." She said.
Without thinking, Flash took her hand and said "Just cause your love one doesn't talk back, doesn't mean they're trying to avoid you or anything."
Sunset Shimmer looked at her hand being hold by his's. She couldn't help but blush of how he was being nice. Even when they were together, she admit he was cute back then and still is to this day.
He started to blushed too and they both looked away from each other. "So, you think Twilight will come back real soon?" She asked.
"I know so. She always does. And if there's anyone you ever want to talk to, you can come to me."
She looked at him finally and was locked into his blue eyes. They were so pretty and most guys never have gorgeous eyes. His smile was real cute but he seemed more cute when he was blushing.
The room felt pretty hot to them. "Hey listen," Sunset said. "Back when I was your girl, I want to say I'm sorry for using you. You are a great guy a all but I never really did like you, like you."
"I know. You're always avoiding my kisses when we date."
She chuckled remembering those moments. "I mean, you were cute and a great friend but I... I don't know."
"Well it's great to hear I was cute and still am." He said smiling.
Then it was real quiet. They were staring at each other for so long, they forgot they were at a party. But then again they were in a bedroom. They wouldn't stop looking into their eyes.
Suddenly, it happen. Sunset Shimmer had her lips on his and Flash had his on her lips.
Sunset Shimmer wasn't sure if this was the right thing to do. Just kiss Flash out of nowhere and she's dating Twilight. Twilight was never around and Sunset was desperate for her. Maybe if no one finds out it will be okay?
Sunset began to make the kiss go deeper making Flash moan. He was actually starting to like the kiss and got into it. So he began to push her further close to hitting the bed. They broke the kiss and Flash begin to kiss Sunset's neck. She moaned. She never realized how guys could be this good. Soon he was close to her collarbone kissing and licking it.

Knock knock!
"Another party guest!" Pinkie said running to the door. Funny how a girl like her good hear the door knock with the party being so loud.
She made it and open the door and couldn't believe her eyes and who she was seeing.
"Hey Pinkie pie."
"Twilight! What are you doing here?!"
"I haven't been here for so long and I haven't heard much from Sunset Shimmer tonight, so I thought I come to your party and surprise her."
"Well you certainly surprise me. Come in!" She let her pony/human friend come in and close the door.
"This party is fantastic. What's the occasion?"
"Nothing but a silly old party for no reason. I call it "my random party!""
"Well it's a good random party day Pinkie."
"Thank you. I'll go to my friend you're here!" And she jumped a way to search for the mane three.
Twilight couldn't wait to see Sunset Shimmer again. She missed her so much. She just couldn't respond back after what happened Equestria with her pony friends.

Flash was already kissing her stomach and was about to lift her shirt up. She had to take off the jacket first and then they could take it off. When she did, she felt in need to give him a heat kiss again. She added her tongue so they can have a tongue war. She began to upzip his pants while he lifted his shirt off of him revealing his chest.
He pull down her skirt revealing her panties as she took off her boots.
She pushed him closer for another kiss, they both laid back against the bed again to continue their moment.
He bend for his pants that he left on the floor and grab the little paper plastic thing from one of his pockets. He began to pull down his boxers put it on his astonished. Sunset Shimmer blushed of how big it is.
He looked down at her and asked "Are you sure you want to do this?"
She nodded her head repeatedly and said "Yes. I want to. Please."

"Here she is!" Pinkie came back with her friends coming towards Twilight.
"Oh Twilight, it's great to see you again." Fluttershy said.
"It most certainly is." Rarity said.
"I'm glad to be back but only for a little while. Back in Equestria I could barely write back to Sunset Shimmer is there were so many problems going on with my pony friends."
"What was going on?" Fluttershy asked.
"Nothing really important just pony rules." She then realize there was one person not with them. "Speaking of which where is Sunset Shimmer?"
"Well I saw her sitting in a chair in the corner by herself," Rarity said. "She certainly missed you a lot. Let's hope you find her because she needs."
So they decided to search for Sunset Shimmer.

She was moaning more than ever. All the time she tried to do it with Twilight wasn't always so good but it wasn't always that bad. Since she was a pony from Equestria, she doesn't really know how to have sex with humans. Flash was sweating his forehead off. Hopefully none will get onto her hair.
He then stop to take a breather and stayed still looking down at Sunset Shimmer.
"You feel amazing." She said panting. "Were you thinking of getting laid tonight?"
"Not really." He said. "These were actually my friend's since he thought he was going to do with his girlfriend. But she bailed out so he gave them to me. I hope that ain't weird."
"Not weird at all." She wrapped her hands around his neck and pull him in so they can continue.
She could feel her climax coming.

"Sunset Shimmer where are you?!" Pinkie called for her friend.
They all search everywhere downstairs, and no one has found her. Twilight felt she need to take a break and go upstairs to the bathroom. She has been holding it for a long time.
When she came out and was about to go back downstairs, she heard morning and the other room. She's never heard moans like this.

Sunset was moaning really loud, basically screaming in pleasure. He was about to cum probably through the condom and he was panting and sweating.
He never stopped and put in all he could.
"Don't stop!" Sunset screamed with her eyes closed. "Don't stop Flashy!"
He wasn't even thinking about. In fact, he wasn't thinking at all! Neither of them were.

Twilight recognized the voice from the other room and felt the need to just burst through the door. When she came through the door she turned to her side, her eyes were filled with horrible of what she saw.
Flash was moaning really loud and lift his head back. When he was done he laid next to Sunset Shimmer and was panting.
Twilight felt she was about to cry as she saw her girlfriend laid in bed. She was gasping and didn't even care if she was loud or discover.
Sunset Shimmer immediately lift up from the bed and saw her standing there with tears reaching through her eyes. "Twilight!" She was scared and tried to cover herself. "This... this isn't'...!"
Flash immediately lift up and saw her standing there too. He was blushing a little too embarrassed of what was going on. He was so surprised to see her there.
"You... you w-wer..." Twilight was so speechless.
"Twilight this isn't what it looks like." Flash said immediately.
"Yeah we were just... we were just..." Sunset tried to think of an excuse but what is there to be using for after what just happened?
She sighed and said with big sad eyes "I'm really sorry Twilight. I didn't mean to-"
"I trusted you! You bitch!" She ran out and didn't even bother to close the door. She ran past the confetti bomb says they flew in the air from Scootaloo, Applebloom and Sweetie Belle. She had tears in her eyes and she ran out of the house.
"Wait!" Pinkie yelled as she saw her running. "Twilight, what's wrong?!"
Sunset Shimmer did not move off the bed. She didn't move at all. She couldn't believe what she had done.
She had broke Twilight's heart, and now she believes they are no longer together.
"I'm so sorry." Flash said getting up.
She didn't respond. She never talked that entire day or the past few weeks.

(Back to the present...)

"She actually called you a bitch?" Rainbow couldn't believe what she just heard.
"Yes." She said sobbing her eyes into her hands. "I can't blame her for calling me that. And I certainly can't blame her for wanting to break up with me. I know it's over."
"Sunset, why?"
"I don't know. I guess I was so desperate for her I don't know what else to do. I'm the worst girlfriend anyone could ever ask for."
Rainbow was certainly not happy with the story she just heard. But if there's one thing she learned in her entire life, is that everyone makes mistakes and Sunset Shimmer has definitely made one big mistake.
Not everyone is perfect. Neither was Rainbow Dash. So she knew exactly what to tell Sunset Shimmer.
"You're not the worst girlfriend ever Sunset." She said getting her hands to be away from her wet eyes. "You just made one little mistake."
"Little?"
"Okay a big one. But everyone makes mistakes and no one is perfect. Twilight may not want you back, but I bet if you she will try to understand. I'm not saying she'll come back, but I'm saying that she might forgive you and be your friend again. I know I would if it was just an accident."
Sunset Shimmer could not believe Rainbow Dash. "You mean, you're still my friend after what happened?"
"Yeah. I mean if you did it on purpose I would not try to be a friend. But if you it was a bad accident I would forgive ya. And Twilight might too."
She smiled and leaned in for a hug from Rainbow Dash. "I'm glad you came back. There is literally no one I could talk to you about this problem. I'm just so scared of what everyone will think of me now."
"It doesn't matter what people think of you." She said looking at Sunset. "Just as long as you're you, you're perfect."
She wiped away her tears and said "I can't wait to be a teacher again."

A/N: I know it's sad and probably not my best. It's good right now my sister kind of made me mad and sad about the story. You know what? It's mine I decide what to do! I'll see you guys next chapter have a good day!