This is seriously brilliant. I agree with everyone else here when I say that your Ryo is epic. This line in particular:

Ryo pauses in his sandwich eating, then carefully sets the sandwich down on the plate. He daintily pats around his mouth with a paper towel. “What?”

felt so realistic. You should write more Ryo. He cracks me up.

Aside from my Ryo love, I thought this story was awesome. I loved how oblivious they both are of each others feelings and how it makes Jin want to live with Yamapi, while Pi is terrified of cohabiting.

I also love the Satan-sofa and Yamapi's failure at skype. Both made me laugh so much. And the sex was hot. Very hot.

Basically, I approve. :)