When Dave left John's it was already pouring down rain, so naturally by the time he reached his house he was dripping wet. Opening up the door he calls out to Karkat.
"Kitkat I'm home!" He starts up his little ritual for greeting Karkat after the first few times of startling him while he was absorbed in something as he entered the house. Obviously the Game treated those two well. Not.
"I'm in the respriteblock! I'll be out in a minute!"
He starts getting rid of his outer layers in the entryway before heading through to the living room careful to follow the same path Karkat took earlier so he doesn't get the floor dirtier than it already is. By the time he reaches the living room Karkat is by the couch and in his arms is, a baby? His eyes go wide eyebrows visible over his shades.
"Where the hell did you randomly find a baby?!" He exclaims.
His words startles the grub who begins to fuss he can just barely see yellow tinted tears bead up in the grubs eye's. Karkat looks down attempting to calm them purring a bit louder than before as he bounces them in his arms.
"I found them in an ally way while I was walking home. They, Dave, they were in a fucking box on the street abandoned and covered in blood. I just couldn't leave them there!" His eyes tear up a bit.
"Woah, woah, okay so we gotta baby now. That's cool."
"They're a grub Dave." Karkat glares at you a bit.
"Like I said, a baby."
Karkat growls pointedly. "They're a grub get it fucking right!"
"Got it. Grub. So… does the little guy got a name?"
"I don't fucking know, maybe? Fuck, I mean it's possible they got a name before their lusus abandoned them but who fucking knows. They're a grub they can't fucking talk yet!" Karkat scratches the grub between their horns gently, thinking a bit.
"We could try to re-name them. Or just go through names until they respond to one. Though that could take a really long time." He throws out a few suggestions.
"Do you know how many fucking troll names there are?! It's ridiculous. I'm getting a thinkpan ache just thinking about it." Karkat shakes his head. By now theres a decent sized puddle at Dave's feet, Karkat realizing that he hadn't bothered to change before freaking out about the grub raises an eyebrow at him. "Dave get the fuck out of here and clean up, your inferior human system could get sick while you fuck around talking with me instead of going and warming up you douchenozzle." He grumbles.
"Dude I'm not the one who came home with a fucking baby without a single message saying 'by the way I've brought home a FUCKING baby! Just so you know, love you, see you when you get home!"
"Dave shut the fuck up and go!" Karkat points towards the bathroom a growl rumbling low in his chest.
"Okay okay fine." Dave holds his hands up, surrendering to his boyfriend's whims. After rushing through a hot shower he throws on the first articles of clothing he touches without a care of who's they were. Finished he rejoins Karkat in the living room plopping down on the couch next to him leaning in to get a closer look at the grub.