I'm certain there are more, but I don't feel like looking.
Reviews of my Work: You are kind of boring - Blackorion Congratulations! Ur an asshole! - tokyo_homi Your awesome!!!- Cherelle_Ashley NightSwan also said that she wanted to peg me, once, but I'm not sure whether to take that as a compliment or a threat...
Video Girl A.I. is made of win! Good Morning Call is kind of what you're looking for. It fits the pattern. A girl and boy move into the same apartment after a mix-up occurs at the real estate agency or some such. In case you haven't read it I'd suggest you read Fruits Basket. To round it out, Love Monster and My Balls. Both are ecchi, but My Balls takes it to an extreme and hilarious level.
________________ Sarcasm just doesn't work over the internet.