[A.J.Armitage]

If anal sex is OK, why do you suppose it matters to God who's doing it? I mean, I could see if God thought that the equipment could only be used a certain way, but if that's not it, why the distinction?

But who's doing it is exactly what the issue is. Remember, God doesn't approve of adultery, not because He disapproves of using the equipment in a heterosexual way, but because of who it is doing it. The only type of sex God approves of is sex between a man and a woman who are married to each other.

[Calculus_of_Consent]

The only type of sex God approves of is sex between a man and a woman who are married to each other.

How do you know that?