Are Fable 2 and Fable 3 okay enough for a 15 year old to play?

Hey, I was going to get Fable 2 but my mom (She's great about games, but she likes too be informed), saw that it was rated M and asked the cashier about it. Something the cashier must of been a good reason, but I still wonder. I'm 15 and I started playing Mature games around January. In that time I've played Oblivion, Fallout 3, and Just Cause 2 and I found none of that content disturbing. I'm going to try to buy it again, but I''d like an opinion on whether they're horribly graphic games. This won't be the first Lionhead game I've played so I have an idea what the content will be like. The other Lionhead game I played was Black and White.