Introverts can be better in bed. Remember about his deliberate decision making? This goes for sex as well. When introverts go for a decision, they are all in. You don’t want a person who’s wishy washy or jumping all over the place when it comes to you orgasming. Also, since introverts tend to think a lot, they are probably thinking about all the dirty things they are going to do to you when you come home.