Well, that depends. Maybe you could provide more information like the plot, characters, or any unique features to determine if it's the Spartan Rage comic you're thinking of.
I think it's hard to pinpoint exactly which one was the very first. But some of the early ones that gained popularity were simple and had basic expressions.
I don't think so. Spartan Rage comics are more about battles, courage, and heroic deeds. They don't venture into the realm of pornography. Usually, such comics are created to entertain and inspire, not to present adult-oriented material.