They look really cute and make a girl look more mature in general. To me it also gives the impression of her body being more natural, as in she doesn't necessarily care about it and just lets it grow. They also makes her appear healthier in a way I can't really explain.
Other nice things about pubes, other than looking cute, are that it feels really nice to run your fingers trough them and I imagine that it feels really good and more rewarding to grind your cock against them, before blowing a load and smearing it into them then with a shaved girl, simply because of the way the texture feels.
Though I think I should mention, that my breeding fetish could also play a role in my affection towards pubes