On
Welcome To AEBN - The Global VOD Leader I came across a movie which is well suited to this thread, it's called
'cum eating cuckolds'. In the first scene this wife works on a black dude while her husband helplessly looks on from the sidelines - pretty standard stuff - but what really makes this scene great is that the wife makes her husband stand up beside the black dude (who is easily double her husband in size as you can see in the attached snapshot) so she can compare their cocks. Many humiliation jokes follow and everyone (including me) goes home happy. Scenes 2 and 3 are quite similar...