(Y/N) plays a little prank on Knockout, hoping for a certain type of punishment.
Warning: sexual content, miscarriage. Stop reading at the bad ending if this subject upsets you.
(Y/N) is friends with Knockout. One night she sneaks on the Nemesis to paint Knockout into a rainbow. She knows the risk she's taking if she's caught by anyone but Knockout. (Y/N) was at the Nemesis all night and finally finished at dawn. She rushes off the ship and back home.
Knockout walks out of his berthroom and down the hall, noticing every con laughing as he walks by them.
"What happened to you?" Breakdown asks.
Knockout goes back to his berthroom and notices he's a walking rainbow. Breakdown watches Knockout's faceplate turn as red as his paint job before he leaves the room.
Knockout walks onto the ship's deck, waiting for the door to be closed.
"(Y/N)!" He yells before transforming and speeding to her house.
Knockout's holoform barges into (Y/N)'s bedroom, waking her up, resulting in her screaming. Before she can move, Knockout pins her to the bed.
"You think it's funny painting me like a rainbow?!" He yells, "you must be punished."
(Y/N) smiles, "go ahead."
Dang it, she knows. Knockout realizes.
(Y/N) sees Knockout is ready to frag her. He kisses her but keeps her pinned to the bed.
(Y/N) didn't think Knockout would rip her clothes off before rolling her into her stomach and slapping her aft.
"You have been very naughty," he scolds.
A few slaps later, he has her laying in her back and licks her area, trying to go slow while wanting to frag (Y/N).
He tries to go slow once he enters her, enjoying hearing (Y/N)'s moaning, but quickly picks up speed.
"Knockout!" (Y/N) begs.
He keeps going for a few minutes before pulling out and laying next to (Y/N) until she falls asleep. He knows he has to get back to the Nemesis.
One day six weeks later, Knockout returns to (Y/N)'s house to her throwing up. He insists on checking her, unprepared for what he finds.
"We're going to have a sparkling," he tells her, worried she'll be pissed.
(Y/N) smiles and kisses him. There's always the fear that Megatron will find out about their relationship and now that they're having a sparkling, but she loves Knockout, and he'd make sure his family is safe.
Good ending;
Knockout is happy to be at (Y/N)'s house the day she goes into labor. Though he regrets she has been in labor alone for four hours. He tries his best to support (Y/N) and try not to worry she may need a c-section which means taking her to the Nemesis.
It's a long ten hours of labor and forty minutes to deliver the baby, but the couple has a healthy baby (boy/girl). They pick a name related to the rainbow.
A/N: FYI, there are lots of names or cut out the theme if you have a different name in mind.
Bad ending;
Knockout is happy to be a sire, but (Y/N) is freaking out; what if Megatron funds out?
She didn't know her stress was dangerous until one night when she felt blood go down her legs. She goes to the bathroom and screams, seeing how much blood ends up in the toilet. Knockout rushes in and questions if it's the same as a cybertronian femme leaking Energon.
No, why us? Knockout asks himself as his scanner confirms they lost the baby. All Knockout can do is support (Y/N), and he knows he can't suggest trying again for a while.