Sex scenes are common in modern games - and are often made by filming human actors who are then digitised into game characters.
Is “common” referring to cringey low budget Steam games? I don’t think I’ve seen any sort of on screen simulated sex in a game, ever. Granted I tend to only play well publicized indie games and larger releases. But how common is this? Am I out of the loop?
I don’t recommend it, but going bass-to-mouth was a very popular and hyped feature addition for SEGA Bass Fishing. I’m surprised this is the first you are hearing of it
The Witcher and Cyberpunk I’ll give you, but Mass Effect definitely fades to black before getting to actual sex, the other two are mods. I wasn’t saying sex in games doesn’t exist, but if we’ve gotta go back several decades for a handful examples, that doesn’t feel like something that’s “common.”
I think "common" here would refer to having to produce them, over the actual explicitness of the scene. Whether Mass Effect fades to black or not isn't really the point when the voice actors still have to record the lines that play while the screen is dark.