Don't threaten me.
"If you say that you are certain"
I 'say' that I am certain?
Are you implying that I actually do believe in your god?
Eh, I would say to blow it out your ass, but you may not know enough English to actually be that subtle...
"there is no God, and then there must be no devil, right?"
More correct to say, I do not believe in your god, your demons, your devils, your angels, your whole pantheon.
"If there God andno devil, how do you explain Magic?"
Pretty easy. NO god, no devil, no magic.
"Magic must come from sowhere then where? Magic is not real? Our reality has magic things."
Name three that are still magic when used in the laboratory...
"if you do not eat all of this,"
Not without ketchup.
"then let me ask you, is that why you think sexuality is okay?"
Not sure what Magic has to do with sexuality, but go head.
"What happens if people have sex but they are not doing it for procreation?"
They have fun.
"What if they take pleasure in the ACT?"
Then they're doing it right.
"What if they are not even married?"
Then they're doing it right. Don't get married just for sex. Nine times in ten, if you get married JUST TO GET LAID, then some time in the future, you'll get divorced FOR THE SAMRE REASON.
"How can this possibly be okay?"