Dave smiled at Karkat and tugged a blanket over them, collapsing on the bed next to his matesprit. Karkat smiled faintly and curled up into Dave's warmth and listened to what he was whispering quietly.
"I, Dave Strider, promise to you, Karkat Vantas, as your boyfriend, matesprit, your significant other, to always love you. To hold your hand in public and kiss your cheeks in front of our friends just to make you blush. To full on kiss you whenever I can, to hold you at night. I promise to let you hog the blanket, to calm you down from a bad dream, to never let you talk down to yourself because goddamn, you're perfect. I promise to let you wear my clothes after sex just because you look so adorable in them-" this enticed a shallow growl from the smaller of the pair "-to take you out on ridiculously cheesy dates. To make you watch horror movies with me just to get you to hold onto me, only to end up watching your godawful romcoms with you as an apology. I promise to kiss you until you can hardly breath, to make you moan so much that you'll forget every other name but mine. To make you feel as good as possible and whisper sweet things such as this into your ear once we're tired and worn from the day. I do solemnly swear this to you as your matesprit. Because I am so hopelessly in love, flushed, the reddest red possible for you that there is no point in ever going back."
Dave finished with a sweet chaste kiss to Karkat's forehead. Karkat gripped Dave's shirt and somehow wiggled closer under their comforter. "Did I do good?" Dave hesitantly asked, running his fingers through Karkat's hair and indulging in the sweet little shiver the gesture was met with.
"Yes, Dave, you did . . . Amazing." Karkat stirred, leaning up to kiss Dave momentarily on the lips. "Thank you. . ." he whispered before fully laying down again and falling asleep soon after. Dave touched his lips gently with his free hand and smiled. I could definitely get used to those kisses of his. Dave thought to himself before winding his arms around Karkat's waist and falling asleep.