how do あなた feel about this?

I personally don't mind it. Sometimes a little well-written smut can be fun! And 書く it can help take the edge off some days as well. As long as it's not horrible and makes some form of sense, I'm good with it. Same as any other phic.
If あなた don't like it though, または are naive enough to think that any and all of the grown adults in POTO never even CONSIDERED sexual relations with anyone else, I would just keep away from it.

i thought it was a beaitful played

people do fanfic about the phantom of the opera i think that fanficv is rather sickening keep your fantasies clear または in your head!! In addition the phantom of the opera story is two deep and intense to be cheapened によって fanfiction.

Well written smut is always fine as long as it's not disrespecting the characters. But when it gets too detailed in describing body parts that would be better off left for the readers imagination, it gets really... bad. Especially in fanfiction. I don't know why but it makes a difference. To me anyway.