8 XXX : doujinshi

Sometimes I find the NTR to be okay since the girl/guy getting forced ends up enjoying it. This though, is so fucked up. It's clear he's in agony, he really loves his girlfriend yet he can't do anything. I hope this ends with the girlfriend realising what's happening and stopping the little sister. She's a real twisted bitch.
The 3rd chapter of our *"loving" and "totally normal"* story is here! This one is my favourite of all 3. The part with the birthday song is so ***fucking EVIL***, it's great. Again, NTR warning. If you don't like it watch out you might find yourself off on a feels-trip Here's the last two parts if you missed them: [one](http://imgur.com/a/fGFK5), [two](http://imgur.com/a/PStRv) There is 1 other full chapter and another mini-chapter but they aren't translated yet so the ride ends here for now.
Is there more? I know this is some fucked up NTR dude honestly.doesn't want to but goddamn if it isn't hot. My incest fetish tends to trump my NTR dislike. Oh man she is one hot little sister.