Wannabe Cuckold... Porn to show her?

I'm a wannabe cuckold whose girlfriend is really starting to show an interest in the idea. I'd like to get her into watching some porn with really hung guys, preferably with a cuckold theme. It can't be anything too extreme, and the guy should be hung and handsome. I suspect she'd enjoy it if the girl was really into getting it hard.

Anyone have any suggestions? If you suggest something that works I promise to give you updates on her reaction on her

Any help much appreciated.