"Beautiful"?

So I was driving home last night and I was listening to the radio. Now Im not gonna lie I love the beat to a lot of hip hop/rap music. I love to dance (not that I can) so if Im in the car by myself I tend to turn my music up really loud and dance/sing. Well I was channel surfing and I came to this Akon song "beautiful". At first I was like oh this song is so sweet he just keeps saying how beautiful his girl is, BUT then I keep listening. Im just curious why male singers/rappers mix a compliment with a "potty" word. To me it losses its sweetness. As I continue with the song his attraction to this girl isnt so innocent.
Anyways, my point is I wish that they would just make some good hip hop beats with some good lyrics. :)