I wanted to include this in my last post but decided against it because it would be repetitive since I already had an example of 'a joke about SA before Grian gets r@ped for the first time in KoV'.
The example is, I think in episode 5, after the trio escape from the dungeon they stumble upon a sleeping guard who's crouching and facing away from the trio. Sam (I think) soon discovers that if he lines his sword up with the guard just right, it'll look like he's sticking the sword up his... you know. And after he discovers this, Taurtis joins in and does the same.
Now, obviously, this is a very shitty and insensitive joke, but I think it's also an illustration of KoV Sam and Taurtis's characters. Which is, they were assholes the entire time.
Now, I can’t confirm whether or not Grian laughed during this scene, but I think it's interesting how he never does or says anything weird like this himself. (The closest might be where he hits on a witch and then kills her in a 'wizard's duel' but, one, she seemed into it, and two, I don't think we could really see what was happening during that conversation so it's kinda up for debate what went down. (And, sorry, I'm being a bit of a Grian apologist here, but I head canon that duel was more formally agreed upon and consensual than it seems).
Anyway, I think it's kinda insane how no one mentions that scene. Obviously, the reason why is because what happens to Grian afterwards is so much worse, but I think it demonstrates how baked-in r@pe jokes unfortunately were and how Sam and Taurtis were always (or at least mostly) the ones making them.