So hello, regarding your question I would say that it depends of the focus of the game. If the main point of playing is to have characters having intercourses and you can't choose to skip it then it's nsfw nsfw. And it would also depends of what's happening during the nsfw scene. If we don't see any well delicate body parts (as we can chose to censor the cg for example) then it's eroge in my opinion. Basically as long as the game main purpose isn't nsfw for nsfw and there's more story than that I would say eroge.