Welcome to the world of MTV. Children and teens watch this stuff for hours each and every day with no parental intervention.
1) During the first rap song (was it "Diddy P"?), it seemed like every time the cameras went to a full-body shot, the guy would grab his crotch, and immediately the camera would switch back to his face. I think the producers were actually trying to avoid those moments, but the guy must have done the zipper-grab 20 times during his two-minute "song." So to give them credit, the producers had an impossible task.
2) We had closed-captions enabled on the TV, and at one point the lyrics became so raunchy that they stopped captioning them. It was if the captioners became disgusted, and just quit typing.