When Ludwig kisses back, it is lazy and tired, and Feliciano knows why. It is because it's one A.M. and Ludwig is always kind of tired after they have sex and especially if they do it more than once and that is kind of creating a little problem right now because Feliciano isn't tired, or at least part of him isn't and it's kind of really uncomfortable.
Ludwig seems to have noticed, and he eyes Feliciano wearily. "Ciano, I—"
"I know," Feliciano murmurs. "Too tired." He rolls away from Ludwig, making to get up off the bed and slip into the bathroom so he can take care of this—
A hand on his hip stops him.
"Uh?"
"Y-you don't have to. Um." Ludwig looks incredibly unsure of how to put this. "You c-can stay if you want. Just. Uh—"
"Oh." Feliciano grins, sliding back into bed. "Tell me if I do something you don't want, okay?"
"Mm."
Wriggling under the covers, Feliciano presses himself to Ludwig's side—"Okay?" "Yes,"—and then the thing is, the thing is Ludwig's skin is really warm and feels really, really good against him, and Feliciano rocks his hips a little and Ludwig's breath hitches in surprise.
"Should I—"
"You can keep going." One of Ludwig's hands is in his hair, and Feliciano buries his face in Ludwig's shoulder and rolls his hips again against Ludwig's thigh.
"Nn…"
Before long, he's wrapped one of his legs around Ludwig's and his hips are moving at a—not-quite-steady pace and Ludwig raises his leg slightly, just enough to press back against Feliciano, just enough to make him whine the tiniest bit, and Feliciano clutches the sheets in his fingers and keeps rubbing himself against Ludwig.
He's tired too, more or less, and his motions are a little haphazard, and when broad fingers press against his lips he opens his mouth and mutters against them a little, eyes hooded. It's very warm under the blankets, and Ludwig is warm, and Feliciano is warm and there's heat curling low in his belly as Ludwig presses back against him again and he moves his hips faster, legs now nearly wrapped around Ludwig's.
When he comes, it is with a sigh and a low moan against the fingers in his mouth, a final jerk of the hips, and he relaxes boneless atop Ludwig, reluctantly moving at last to wipe them off.
And when he kisses Ludwig again, it is lazy and tired, and goodnight passes between their kiss and sinks beneath the weight of the dark and the blankets and their entwined legs.
