It's weird because I'm normally very stingy with my five stars on Goodreads and I have a number of issues with this book, and yet there is no other choice for me but to give it five stars. This book was so compelling and addicting. If it were my choice, I would have read this in one day, but unfortunately I had uni work to do so ended up reading it in four days. But during those times where I forced myself to work, my mind kept drifting back to this book, and that it is why it gets a five star rating from me.
So this book is about Owen and Porter Jamison, dicephalus conjoined twins which means that, while each twin has their own head and neck, they essentially have one torso between them (though, since I'm doing my undergraduate dissertation on conjoined twins, I'm reluctant to conceptualise them in this way but it makes the most sense for people to picture them.) Essentially, however crude this sounds, they look like one body with two heads (though again, this is not how I would conceptualise them.) This is very similar to the real life case of Abby and Brittany Hensel (and if you want to know more about this kind of conjoinment in a more real-life, realistic scenario, do check them out, they are truly inspirational and wonderful people.) Porter is straight and Owen is gay, and much of this book is to do with the sexual lives and the difficulties they face, especially because they only have one sex organ between them.
Honestly, I hated Owen and Porter's parents. How it is possible for parents to be so one-sided and show so much favouritism towards one of their children is beyond me, and also because Owen's and Porter's lives rely on compromise and sacrifice sometimes, the fact that they always made Owen compensate for Porter, I thought, was highly unfair. The way they treated him when they realised he was gay, caring for Porter and Faith first, I hated. I had so much sympathy for Owen in that respect.
Secondly, I hated Porter too for much of the book (though I also wonder if this was to do with the fact that the book was from Owen's point of view.) Again, their lives is about compromise and the number of times that Porter seemed oblivious to this made me angry. Even though they had this system of 'Owen's days' and 'Porter's days', Porter seemed to have no issue with taking time out of Owen's days for his own ends, always making Owen do what he wanted him to (no porn after Faith, not telling Faith he was gay until after the wedding, hiding his relationship with Chase because of how Faith would react, etc. And when Owen gave up Chase for Porter, the response was "yeah, bro, you're making the right choice cuz I would lose my kids" or something like that, as though Porter's desires were more important than Owen's.), and also being worried about how Owen's sexual orientation would impact him. We did not get to see what happened between Porter and Faith, and Owen and Griffin, but it seemed at the end that Porter had really understood that he had gone too far - finally!
I also hated Faith too. When she told Owen that he should give up a whole year to do what Porter wanted, I wanted to slap her. When she stopped Owen from seeing Chase by threatening to take away Porter's kids, I wanted to punch her. And then when she had an issue with Owen seeing Griffin, I almost lost it. I had thought that she understood what being with Porter (and therefore being around Owen) entailed, but it turns out that she, like everyone else, had viewed them as one entity, and I hated her for it.
Owen, on the other hand, has become one of my all-time favourite characters. The amount he sacrificed for Porter and Faith, and the attention he showed her as his sister-in-law, just to have that thrown back in his face. To be told to keep it a secret that he was gay when that wasn't fair. To have his parents clearly prefer Porter to him. To lose his first true love just because he wanted to do the best thing for his twin. He is an amazing character and I sympathise with him so much.
So, finally, I don't think this book is realistic of being a dicephalus conjoined twin. The only living example we have are Abby and Brittany and they certainly do not act in the way that Porter and Owen do despite also having very different circumstances. I did not like a lot of the terminology surrounding Owen and Porter (but thats simply because I've spent the past few months researching conjoined twins) and I also did not like the impression the author gave of conjoined twins being trapped, because, despite popular opinion, this does not seem to be the case for nearly all cases of adult conjoined twins. This makes this book a useful source of societies attitudes to conjoined twins, which was why I read it in the first place. But it was more than just that. This book sucked me in and didn't want to let me go till the end, despite the issues I had with it, and for that reason, I absolutely loved it.