When the Day Met the Night

A Septiplier Headcanon Blog. Hopefully no triggers will come up, but I will tag, especially if you inform me. If you would like to submit a headcanon, click here. (Header by deadpuff.tumblr.com)

[septicanons]

Mark walks in, seeing Jack in his costume and dies of laughter

[septicanons]

Mark follows Jack around a bookstore, reading 50 Shades of Grey aloud and laughing.

This is an older one

[septicanons]

I think I've found my new favourite blog! (Psst its this one)

Really? I feel so proud and I'm posting fluff, angst, and smut tomorrow because I forgot to post them tonight and yesterday due to getting busy as hell

[septicanons]

House of Gold

idk if you know them or whatever but imagine a one shot of mark singing “house of gold” by twenty one pilots to jack!

[septicanons]

Au where mark is an angel that is assisting to jack and they end up doing all sort of crazy stuff together

[septicanons]

Kill la kill AU where Mark is Ryuuko Matoi and Jack is Mako Mankanshoku. Anything else to add when Jack sees Mark with Senketsu on battle mode?

[septicanons]

I'm bored. ._.

Headcanon where Chloe is Mark, and Max is Jack, and he chooses to sacrifice Arcadia Bay, only to have Mr. Jefferson to escape the broken down prison, and set to find them. He ends up strangling Jack after a bit of a fight where he found a pipe to temporarily disable Jack, killing him and using his instant camera to snap a final shot of Jack’s broken body. He sends the photo set to Mark and his apartment, and out of grief Mark commits suicide, going a slow route by driving back to Arcadia Bay, and drowning himself in the debris filled water that remained.

[septicanons]

Nightmare Before Christmas AU for our pumpkin king.

[septicanons]

Mark and Jack usually argue over if sex is better rough or vanilla, but when there's usually more passion is simply after they wake up, sleepy and tired, it's usually gentle instead of nearly making holes in the wall. Jack's moans are quiet because his voice isn't warmed up and Mark's is deep and raspy without a morning coffee to help. Sometimes Jack is taking his time and riding Mark slowly, other times Mark is over him and kissing at his cheek and neck as his hips slowly move. It's the best time because they aren't just fucking, it's special. Because when it's slow, it shows more love than either of them could ever say with words.

[septicanons]

WHAT THE ACTUAL FUUUUUUCK

I don't know what I did, but whatever it is, I didn't do it!

[septicanons]

I'd make a Life is Strange headcanon after yesterday, but after the fifth episode, we were all fucked

[septicanons]

Mark is really happy that Jack played some of the harder levels by other youtubers because that'll make Jack rougher and more demanding in bed later

[septicanons]

Jack is blushing, face red as Mark sucks on his neck, feeling like he's supposed to have sex by this point of the relationship, but Mark catches on and asks if he's alright, Jack nearly in tears as he shakes his head no, Mark nodding and just holding him close, telling him that everything is okay, that he doesn't need to force himself to have sex.

[septicanons]

Hello, so Shy!Mark and Punk!Jack are going to have sex for the first time and Jack thinks that he will top but then out of nowhere Mark flipping turns into a dominant beast and Jack finds out he is a bigger submissive than he would like to admit. Consensual. Stay awesome!

[septicanons]

Mark watching Jack's last video before he died in a car crash while getting crying and mumbling to himself about how he should've confesses sooner IM SORRY

It's okay, do you need a hug?

[septicanons]

Jack getting an anxiety attack every time he's close to telling to Mark about his feelings. One day he's really close and he ends up running away and getting hit my a car. Mark saves him and calls the ambulance. He's crying and tells Jack that he likes him. Jack hears him and smiles slightly before being rushed to the hospital. Fluffy and angsty, I guess? Probably not.

I'll count it, bro

[kinglavender]

i live for @septicanons angsty septiplier headcannons jus sayin

[septicanons]

Thank you!