Erik/Christine love children

[betweensunandmoon]

I hate it when I'm reading a nice, fluffy R/C fic (or any kind of R/C fic, really) where Raoul and Christine are happily married and have a kid...and then it's revealed that the child is not Raoul's, but Erik's.

Why force Raoul to raise another man's child? Is he not allowed to have children of his own? When the hell would Erik and Christine have had sex in the first place?

I hate this cliche and it should die before it ruins any more good fanfics for me. That's all.