Interruption.

Before you can close the door, you hear Celina's voice.

"Where will you sleep?" she asks, quietly.

"On the couch." You flick the light back on, so you can finish your conversation.

"...but you hate that couch."

...Spot on. You really do hate that fucking couch. You don't know how she knows this, but perhaps it's common knowledge at this point. It doesn't help that there's bunk bed shrapnel all over the living room right now. You chuckle a little, and you hear her giggle, too. It's surprisingly much cuter than you expected, but you guess that's the case with quiet girls.

"You can... share my bed... I don't mind."

Well, it's your bed, not hers. It's big enough so that you guys could still keep yourself comfortably distant from her. You're about to take her on that offer as you suddenly wonder how sexual she might get... This was the craziest night you've been in, but you wouldn't want to upset your sister by fucking her responsibility on the first night... you might... have her taken away. That would be terrible, because you just started to like her. You also wouldn't want to give in to your desires and... **** her. She's far too innocent for that. You decide that you're going to keep this as unsexual as you possibly can.

"I... I guess."

She seems to be perfectly okay with this, and slides over to the side of the bed against the wall. She's still fully dressed aside from her leg...

You realise that you've just been in your boxers and shirt this whole time. She didn't seem to care. She's still lying down in the bed, staring at you, waiting for you to get in bed with her. She doesn't seem to care, or even notice, your partial lack of clothing. You stand there for a couple seconds, looking away from her, trying to calm yourself, before you turn off the light and climb in beside her.

"Goodnight." she says.

"Goodnight." you reply. She rolls over and faces the other direction, and appears to be falling asleep. Nothing sexual. She is still the strangest girl you've ever met.