Is it a sin to release semen on a girl's face, even for Christians?
It's a sin to rape her
It's only ok if SHE says it's ok. Otherwise keep your semen out of her face.
What does the modern mythology of christianity have to do with it?
nope .. its not a sin ..
Nope. Not if she likes it.
it's a sin to even ask a stupid so called question like this
It's OK, but you must later scoop it off her face and insert it into her vagina.