Brian loses his virginity! That's an original plot idea for the episode. That fact that his parents are excited about it make this episode. It's fun watching his Brian go out with his father and be treated like a man because of this.
But the predictable plot line of the girl just trying to get money of Brian was expected. I could see that a mile away.
Still, this was a good episode to watch. Not their best work, but the season is still early and I believe that it will get MUCH better.
This is one of the shows that should be around for 9 years AT LEAST!