I think it could be interesting to explore the number 1, since there's no event in game (since I remember) that forces you to have sex.
3 and 7 I thinks it wouldn't hurt to add, but it's mostly because I'm a horny bitch who played the whole game trying to seduce Logan (WHY is this man so difficult OMG)
About number 6, I thinks it's a really good ideia. There could even have some quests that would show up only during theses seasons/weather.