Anonymous6: It depends on your opinion whether they are or aren't twins. They were initially said to be twins, then it was changed to mirror images and then it was withdrawn all together. So, in a way, both anon 1 and anons 3 & 5 are right.
Though in my head, they'll always be twins...
jesteranime: @Anonymous: I don't think it looks rapey. Rin could be crying because she's really tight, or she was still a virgin before this. Lin looks like he's concerned about what's wrong so I'm pretty sure it's not rape.
Anonymous9: For everyone who says they are twins, no they are not. Crypton future media themselves have posted about this topic, they are mirror images, nothing more. Now their relationship with one another, well thats another story, they left that blank, so people coule make them what they want to be, so in a way everyones right, they can be siblings, or lovers. Just depends on the persons view, its like a blank canvas in a way. You make it what you want to become
Though in my head, they'll always be twins...