Isa, you are simply saying that anal and oral sex are permitted in marriage. My bishop says not. He may be wrong, but you will have to provide a higher authority to justify yourself.
I'm sorry, how did I have to justify myself to either you or your bishop again?
My bishop outranks you in terms of authority
as he is not in the Orthodox diptychs of the Catholic Church, he has no authority. Otherwise, why appeal to your bishop's authority when you can appeal to His Holiness'?

so simply offering your own interpretation of what's allowed and what isn't, without any positive statement in your favor from some universally recognized authority, like a Church Father or Council, doesn't cut it.
And your offering your own interpretation of what's allowed and what isn't, without any positive statement in your favor from some universally recognized authority, like a Church Father or Council, cuts it how?
And I don't think it's legitimate in Orthodox theology to argue from silence in the written record, let alone cherry-pick among various written authorities
then why do you do it?
like conveniently labeling everything that disagrees with you as the product of some nebulous "Western captivity".
I've done no such thing: I have only pointed out, the IRREFUTABLE fact, that the term "sodomy" was developed within the Scholastic Latin West, and did not enter Orthodox discourse until Peter suppressed the Orthodox Patriarchate and imposed his Westernization. Nothing more.
The Western Captivity is anything but nebulous, that being the nature of Scholasticism and all.
There is such a thing as unwritten tradition and unwritten authority.
Yes, married couples share it.
Even if there were no written statement on this matter whatsoever, the fact that my bishop tells me these acts are wrong should be taken as authoritative
by me? No, his authority doesn't jump over schism.
unless you could show me that other bishops at other times said otherwise.
Why? Do you want a green light?
I don't know about the kissing and so forth. I am not saying that every canon has to be enforced to the letter;
Ah, but, appealing to them, you must.
that is always up to the bishop.
then he is delict in his duties if he isn't peeking into the bedrooms of the flock.
But there is surely a gradation in terms of the gravity of various sins.
There is: and your canons say that homosexual anal penetrating sex is no worse than heterosexual married dorsal vaginal penetrating sex. I don't recall offhand what their gradation of wife on top of husband is on the "gravity of various sins."
Kissing may be sinful to some degree
between the married, no, 0 degree, never sinful.
but surely not as much as unnatural sexual acts.
Like contraception?
A bishop may decide that kissing is not grave enough to earn a penance
no, he may not.
but he wouldn't say the same for fornication.
one perhaps would hope not, barring circumstances.
My point with respects to the canons of the Faster is that my bishop is not the only authority
they have no Ecumenical authority, notwithstanding the Pedalion's "argument from silence" that they do.
I've come across to condemn unnatural sexual activity, or sodomy.
there's that problem with the basis of definition of terms again
Coming across this condemnation in more than one place confirms in my mind that the Church really does condemn these acts.
well, your mind made up, I hope your wife feels the same.
Btw, I am simply saying that I have no basis to say anal and oral sex (like kissing or hand holding, dorsal vaginal sex or positions with the wife on top) are banned within wedlock.