>>12876766It's common sense. You know them more. There's more to them. The body hosting the vagina has more meaning to them. Rather than a hole to fuck. Sex would be more enjoyable.
You've seen their attitudes towards things, you might agree with or like.
You like how they stare at you, you smile together. Obvious shit. A porn video is a billion miles from that.
As for Science reasons, I only guess because you know it would be easy to get a shag from them. Less energy expended. You also KNOW them, know how they would be with children etc.
