Kankri watched as his brother ate his meal while on tumblr. He was looking at some random blogs. One happened to be his guilty pleasure one though which was these things called 'imagines'. He loved looking at the romance ones even if it did seem embarrassing. Not like anyone could judge since they don't bother to look at his computer and he doesn't reblog any of them.
He had once said he was celibate but that ended with his last boyfriend Cronus. Things hadn't really worked out but by the time it ended Kankri had already broken his vow so there was no going back really. He's a bit more open minded to sexual intercourse things though, but only if it's consensual and between two people who love each other.
He was scrolling down the imagines when he came across a rather 'lewd' one. He read it quickly just to see what it said though.
'Imagine taking a shower and your boyfriend decides to come in and give you head before you roughly fuck him against the wall.'
Kankri gulped at this as he felt something twitch in his pants. He looked over at Karkat who seemed to be finishing up his meal.
"I think i'm going to shower then head to bed for the night. Could you please handle the dishes for me?" Kankri asked his brother in a calm and neutral voice.
"Ya sure." Karkat said between a mouthful of food. Kankri then got up with his laptop and walked to his bedroom. He grabbed his nightclothes and towel before walking into the restroom. He made sure to lock the door and turn on the fan. The more noise the better. He was a pretty quiet guy when it came to masturbation, but he still didn't want his brother to hear the slapping sounds it makes.
He turned on the shower and once it was hot enough he stripped his clothes off. He already had an erection going and with each passing moment it was getting more of a needy feel. The imagine just kept going through his head and he couldn't stop it.
He walked in the shower and closed the glass door to it. He let the warm water go over his body and he got his hair a bit wet before traveling his hands down. He started to rub the tip a bit and moaned ever so slightly at the much needed contact.
He quickly wrapped his hands around the shaft and started to pump a bit. All while he was having some dirty thoughts.
He was imagining his brother, the one person he hasn't been able to keep out of his mind lately. He imagined Karkat kissing his lips roughly and slowly trailing kisses down his chest before getting to his dick.
He thought of Karkat first licking the tip tentatively since he had never done this before before sucking the tip in an almost teasing way. Kankri thought of himself looking down at the naked body of his younger brother as the water cascaded down his body. His own erection very present and prominent. Kankri would have to deal with that.
Karkat would then started to put more into his mouth while stroking the parts he couldn't fit. He would kiss the sides before putting his mouth back and trying to fit as much as he could into his mouth.
Kankri would then grab the back of Karkat's head and move him down on his dick some more. Karkat would make more room and just bob his head up and down. As soon as Kankri was close he'd pop Karkat's head off of him.
He'd make him stand up and lean on the cool tiles of the shower. He'd start fingering his ass before eventually positioning himself. He'd slowly put himself in and then start thrusting, slow at first but rapidly pick up pace. He'd be jerking off Karkat the whole time as well.
Kankri was shuddering now as he was leaning on the tiles. He was shaking from the pleasure and he knew he was close. Before he could finish his little fantasy he came into his hands. He let out a shuddery moan which he knew Karkat wouldn't be able to heard from the kitch.
Kankri stared at his hands with a sigh before he began cleaning up. He ended up finishing his shower and wrapped the towel around his waist. He leaned over the counter and looked into the mirror with disgust. He needed to stop those dirty fantasies. They were about his brother for god's sake! However this didn't stop him. He couldn't. He thought he was probably in love with his own brother.
He just sighed before getting ready and leaving the bathroom. He passed Karkat's bedroom and walked into his own. He heard the front door open and looked at the clock. Seems their father came home a bit earlier than usual. It was only eight after all.
His father opened Kankri's door and he looked up.
"I'm home." His father said and Kankri nodded.
"Welcome home father. I was actually about to retire for the night. Have you checked on Karkat? Did he do the dishes?" Kankri asked his father and he just nodded.
"Yes he did the dishes and he's currently sitting on the couch watching some movies. Good night Kankri." His father said and kankri just mumbled a 'good night' before hiding under the covers.
That night he ended up having once again another sex dream starring Karkat and himself. Great.