*Martinus opens the door*
D: why u cheated on Y/N?
T: I DIDN'T
D: and the girl u kissed?
T: I DIDN'T WANT TO KISS HER
D: that's why u followed her to the bathroom while u thought Y/N wasn't looking?
T: how do u even kn-
D: not ur business
T: ok fine...I cheated on her...but dad...dont u know me? That's how I am
D: No, Martinus, that's not how it goes. All the previous gfs u had, were also skits who were sleeping with other boy every night, u didn't hurt any of them. But Y/N is not like that...Y/N has feelings u rlly broke her...
T: yeah yeah, that's why she already has a new bf
Mom: she doesn't?
T: oh oops, this was supposed to be a secret hahah!
D: wdym?
Y: *opens the door and walks in* he is just lying! How could I find a bf in such a short while after the break up?
T: mby it's someone u loved before me...
Y: before u, I only had one boyfriend, none else, so it turns out I'm still single
T: yes and no....yeah, u had only a bf before...and he is the one u are dating rn...
Mom: wait a damn minute- ur ex wasn't-
D: MARCUSSSSS
M: *comes in* what's wrong dad?
D: are u dating ur sister?
M: *looks at Y/N*
Y: *gives him a look like " say it" *
M: well...yeah...but u can't stop us...
Mom: we are not gonna stop u guys, if u love eachother, it's okay. Since u are not siblings by blood, u can do whatever u want
T: EXCUSE ME? AND WHY U DID ALL THIS WHEN I WAS W Y/N?!

YOU ARE READING
Step Siblings {M.G.} - completed
FanfictionHey! I am Y/N (your name) Y/L/N (your last name) and I am 16. I live in Oslo, Norway. My parents got divorced when I was 10....anyways I live only with my mom.... The last four years my mom has found a new man....his name is Kjell-Erik Gunnarsen..He...