So the prompt came from Sam, she cool, you should follow her.
Lou and Sam: 
Prologue:

I knew it wasn't right, that what we were doing was wrong in so many ways. 
But god was it amazing. She was amazing. Us together, was amazing.
~~~ a few months earlier (beginning of school year)
Lou:
I was nervous. Going back to high school, but this time as a teacher. Yeah I was 
bit young for a teacher, only 20, but my mom was the principal, which is how I 
got the job. I walked into my classroom, I was going to be teaching Algebra 2 to 
juniors. I set my bags down at my desk and started putting things up on the 
walls so it wouldn't look so boring and jail cell like. By the time I finished 
the bell for first period had rung and students were coming into the school. I 
adjusted my suspenders as the first students started walking into class, "take 
your seat wherever, I will assign them later on this week." I heard some sighs 
from a few girls then. Soon my class was filled and the bell rang that started 
class, "Okay, I am Mr. Tomlinson, but you can call me Mr. Tomo if you prefer. 
Today is jus going to be a free day since its only half a day, but here is a 
list for supplies I want by the end of the week, would anyone like to pass them 
out?" I saw a hand go up, and looked at its owners face, she had long dark curly 
hair, and deep brown eyes. "I will" she smiled walking up to me, as she took the 
papers from me she gave me a quick wink and turned back to pass out the papers. 
That was weird? I thought to myself. The first day and I already have a student 
crushing on me, I mean it wasn't that weird, I'm only 20 and she had to be what 
, 17? But still I couldn't show interest, I could loose my job, even if my mom 
was the principal. I decided to ignore it and went back to my desk to start 
planning assignments and such, "here are the extras Tomo," she set the papers 
down on my desk, "oh, thank you uh..." "I'm Sam," "oh we'll then thank you Sam, 
I'm gonna have to try and remember everyone's names," "dont worry, I'll help." 
she said with a smirk and walked back to her seat. 
~~~
The next day i wasn't as nervous, all the students seemed to be pretty good, no 
trouble makers. I unlocked the door to my room and set my stuff down, the bell 
rang then and Sam was the first one to walk in, "hey Mr. Tomo" she smiled 
brightly as she walked to a seat in the back. She was wearing an unusually short 
skirt that hugged her waist nicely and a deep purple blouse. She bent over to 
get something out of her bag and she noticed my starring and smiled back at me 
causing me to blush. "Sorry" I said quickly going back to my work, "no it's 
okay," she replied giggling as she sat down and the rest of my students came in 
then. 
~~~
Friday finally came, and it was as if everyday Sam tried to get me to notice her 
more, with wearing shorter skirts and low cut shirts. I couldn't help but stare 
sometimes, and I hated to admit it but she was really hot. I found myself 
thinking about her outside of school sometimes, which I had to stop doing. She 
was my student for crying out loud. I unlocked the door to my class, and did my 
usual of setting my things down organizing everything and getting straight to 
work. Then the bell rang and my students came in. The class went on as usual 
except today Sam hadn't even looked at me, which was good cause maybe that meant 
she moved on, and was over crushing on a teacher. But sadly that was not the 
case. When class ended and everyone walked out she walked to the door and locked 
it. "you don't have a second period class right Tomo?" I nodded, why did I tell 
her that? I should have lied so she would go, but maybe I didn't want her to. I 
was standing at my desk pretending to be grading papers as he walked up to me. I 
felt her hand on mine as she turned me towards her and wrapped my arms around 
her waist. She then brought hers up to my neck and leaned forward smashing her 
lips to mine. I didn't react at first, I just kinda stood there shocked, but 
then my eyes closed and I started kissing her back. I felt her tounge glid 
against my lower lip and i hesitated at first, but eventually let her in. Our 
tounges fought for dominance, which I won. If we were going to do this, it was 
going I be under my terms. Her hands ran through my hair and mine up and down on 
her back. After a while we stopped and she smiled at me slipping something into 
my hand. The bell rang then ending second period and she walked out. 
~~~
She had slipped a piece of paper with her number on it and we had been texting 
ever since. It was already the next Friday, and everyday during second period we 
would stay in my classroom and make out. I actually started growing feelings for 
her too. That day after second she locked the door as she always had. I was 
sitting on top of my desk as she walked over to me. She got on the desk as well 
and straddled me. She giggled, I guess she could feel my growing boner. 
"already?" she laughed, "oh shut up you." I said as I leaned forward and kissed 
her soft moist lips. I then left a little trail of kisses down her neck to her 
collar bone. "Louis," she said, "what is it babe?" I asked worried now. "I 
understand your my teacher and all but, I um-" "what is it?" "I'm really 
starting to grow strong feelings for you," I laughed, "I am too," she blushed at 
that. "you're an amazing girl." which only caused her to blush more. We sat 
there on my desk for a moment as we just starred at eachother, trying to 
remember every detail of eachothers faces. She leaned foward and kissed me, I 
could feel her hands on my chest making there way down to my belt. She unbuckled 
it. We hadn't done it before, usually we just sat here and made out. "are you 
sure?" I asked her, and she nodded in reply. "but I don't have a-" she brought 
her finger to my lips and showed me the condom. She went back to my pants. Once 
those were off she took off her jeans. I turned us over so that I straddled her 
but then layed her on her back. My fingers played with the elastic on her 
panties as we made out some more. I started slipping them down and she arched 
her back so that I could fully take them off. I took my own underwear off and 
put on the condom. 
We finished before second period ended. I knew it wasn't right, that what we 
were doing was wrong in so many ways. But god was it amazing. She was amazing. 
Us together, was amazing. She got dressed and leaned against the desk as she 
watched me put on my close again. I snapped my suspenders in place making her 
laugh, "I love your laugh," I said to her as I walked up to her and cupped her 
face in my hands. "well, I love you." she loved me, and I actually loved her 
back, I pecked her lips, "I love you to Sam." the bell rang she she grabbed her 
stuff and she turned for the door, "Sam?" "yeah?" "I decided to take a teaching 
job at another school, so that I can see you." "really Lou?" "yeah," she ran 
into my arms and I hugged her tight. 
~~~
It was tough telling my mom I was going to be teaching at another school, but 
she understood. I told her I had gotten close to a student (not the other 
details) but that we were getting somewhat serious and she felt it was best I 
switch. I had been teaching at this new school for two weeks already and had 
gotten use to my new schedule quickly. I missed seeing sam in the mornings 
though, but it was worth being able to see her all the time now. At lunch I 
walked to the teachers lounge to eat, "hey Lou," Marissa the English teacher 
greeted me, "hi marissa," she was a few years older than me, only 27 and we were 
both the youngest teachers here. "listen a couple of us are going out for drinks 
tonight, think you'd like to come?" after a minute I finally realized she was 
talking to me, "oh um, I'm not sure, maybe yeah, could I bring someone with?" 
"oh uh... Sure." she said, "7pm, at the pub down the street from the mall." 
"okay." she walked out with her coffee and i ate my lunch alone. I decide to 
text sam and see if she was up for going out tonight.
Lou: "hey beautiful! You wanna go out 2nite with a couple of my friends from 
work?"
Sam: "hey babe :) but I don't think those people wanna be around a kid when they 
have to deal with them all day, but you go it's ok" 
Lou: "I don't want to go w/o you xx and besides there's other younger people, 
like marissa you'd like her."
Sam: "whose marissa?"
Lou: "just a friend babe, you sure you don't want to come? :(" 
Sam: "oh okay and yeah I have a lot of hw anyways, love you :)x"
Lou: "love you too xxxx"
I wasn't sure I wanted to go without her, but I had been working really hard 
this week and I deserved a night out right?
~~~
"hey Louis!" "hi marissa! Hey Blake!" (Blake is another teacher) It looked like 
I was the last one to show up at the pub. "bout time you showed up." Blake said 
nudging me, clearly already pretty drunk. I got myself a beer and the night went 
on. 
~~~ 
I woke up the next morning in my bed, with not much of a memory of last night. I 
looked at my phone, I had slept in until 1, god what a waste of a day. I decided 
to call sam since it was a Saturday, no answer. I went to text her, but saw the 
previous text sent. Text from last night. Text definitely not sent by me. 
Atleast I didn't think I sent them. I scrolled threw the text all attached to 
pictures of me, with marissa, hugging marissa, drinking with marissa. Shit I 
thought, I couldnt have sent these. All the pictures looked like they were taken 
by someone else, and some looked like they were taken by marissa. No no no no. 
This couldn't be happening. I would NEVER cheat on her but she didn't know that 
according to these pictures. Sam must hate me. No not must, she DID, I knew she 
did. She had too. I quickly texted her. 
Lou: "babe please pick up!" 
No reply
Lou: "please can we talk?"
No reply
Lou: "you know I love you!"
No reply
I decided to go downstairs. But when I got to the kitchen Marissa was there, 
making lunch. "We'll its about time you got up!" she said with a big smile on 
her face. "Wh-what, marissa how did you- and why are you..." "I spent the night 
remember?" "no... Did we..." "oh no! You crashed before we got you home, Blake 
and I had to drag you upstairs. We were all pretty messed up last night." "oh." 
was all I could say, why the hell was she still here though. She was in her 
clothes from last night, and she ha makeup smeared down her face. "here you go." 
she set down a sandwich infront of me. "um, thanks." "yeah we'll I'm gonna get 
going now, see you Monday." "wait marissa, did you... Did you send those 
pictures to my girlfriend?" "yeah why?" "why would you do that?" she laughed a 
little, which annoyed me, "why would you want to be with some little 17 year 
old?" "marissa, just go." "alright, whatever. Bye Lou." she smirked and walked 
to the door. As she opened it Sam was standing there, "oh I um-" she started but 
then took off runni grown the hall, I shoved Marissa out of the way and ran 
after sam. "Sam! Please! I can explain!" "explain what?? That you cheated on me? 
If you were tired of being with me you could've just said it. You didn't have to 
rub it in my face that you found someone better. Older." I put my hands on her 
waist and turned her around, but she wouldn't meet my eyes. "Sam, Marissa is a 
horrible person. She took all those pictures when I was crazy drunk and SHE sent 
them to you. And we didn't sleep together last night, she just stayed the night. 
And she isn't better than you, you're the most amazing girl I've ever met. Your 
perfect to me." I could see the tears streaming down her face (LOLOL see what I 
did there) I cupped her face in my hands and wiped her teary cheeks with my 
thumbs. I brought her gaze up to me, and I smiled at her, "I love you, and only 
you." "she smiled. A bit then. "I love you too Lou, but I just-" "no I know, you 
probably don't trust me anymore I understand." It was quiet for a while, but she 
broke the silence, "I can't stay mad at you for long though. I love you too." I 
smiled a smile so big it hurt my face, I leaned in and I felt her warm lips on 
my cold ones, her soft lips agains my chapped dried ones. She was too perfect 
for me. "I promise I will never hurt you are scare you like that ever again, I 
swear. I love you too much to ever hurt you again." "it's okay Louis, I know." 
she rested her head on my shoulder. And we stood there together for a while. 
Just appreciating having eachother.