Average dick. When I played Battle of the Bulges, I wasn't thinking about porn so much as I was thinking about why the girls weren't dying from their insides exploding.
It's actually kind of refreshing when you get an MC with a more realistic dick. It's usually either a foot long or a micro peen and you're playing a cuck simulator. There's almost never any in-between.
there's definitely a tipping point where it gets so big it's ridiculous, but still, there's something undeniably hot about a big cock
end of the day, it's all fantasy, I think about the memes like this that remind us that a lot of those big dicks wouldn't be very practical irl
I guess it depends on the context. If we're going for a realism approach, average or even modest can mesh with that better. If I see a human arm disappear into a hole without organs gushing out, though, that pretty clearly leans into the fantastical context of a lot of porn, so it tells me to just enjoy the suspension of disbelief and play along.