Good idea.

You decide it's probably for the best to give her a tour of the place. You really want to seem like a good host. You begin: "The room you're in right now is the Dining Room. This is where I make food. And eat." You probably could have phrased that better. Celina looks at you and nods, and you're pretty sure she's forcing a smile. Right.

"...And the Dining Room is directly attached to the living room. The television is here, and this is where I spend most of my days." When you say 'television', Celina looks over at it as if she just noticed it was there, even though it's been on the whole time. She stares at commercials for a few minutes as you walk back towards the hallway.

Your sister breaks her stare and practically pushes her down the hallway after you. You open the first door on your right, and realise that this room is still a mess. It's not like you intended to show this room off, but hey, why not.

"This is the storage room. Most of the old stuff I don't use anymore is piled up in here. Also, the washing machines are here, just so you know. It's more of a big closet than a room, anyways." Celina peeks her head in and stares at the boxes for a couple seconds, but she doesn't seem particularily interested.

You lead them to the next door on the right, and push it open as much as you can. "This is the washroom. It's not big, but it gets the job done." You're particularily proud of this one, because as of the cleaning earlier today, everything is spotless and there's nothing sitting out anywhere. You put on a big smile, but nobody seems to notice, or care. Oh well. You're still proud.

You walk over to the last door, this one on the right. You push it open.

"Finally," you start enthusiastically, "This is the bed... room..." Your voice trails off as you realise that you only have one bedroom. And for that matter, one bed. There's a couple seconds of awkward silence as you put your hand on your face. Your sister realises why you stopped, and makes an awkward frown. Celina still has a blank expression on her face.

"You can... uh... sleep on the..." you begin, but no. You realise that it wouldn't at all be a gentlemannely thing to do to **** this girl so... high class... to sleep on the couch, let alone anywhere that's not a bed. You guess that you'll have to sleep on the couch yourself... that uncomfortable, lumpy couch...

Suddenly, your sister's frown turns into more of a smile. You imagine a lightbulb over her head. She quickly spits out "Bunk bed."

...Right. Your bed can convert into a bunk bed. All of the parts are still in the storage room. Why didn't you think of this? Whatever. You're just happy that nobody has to sleep on that terrible, terrible couch. You and your sister begin taking out all the parts of the upper half of the bed. While you begin working, Celina walks back to the Dining Room and sits back on the chair she had earlier.

Lazy girl.