Sidebar rant, but have you guys noticed the amount of incredibly fake cuckold porn on PornHub and similar tube sites? It's all made by a couple that actually isn't in the lifestyle, but thought they could capitalize by using editing tricks in their video editor, this stuff is really easy to spot too:

1. The husband & bull never talk or interact
2. The husband & bull strangely enough look exactly like each other (because it's the same dude)
3. Whenever the bull finishes and the husband goes to the wife, there's a video cut for some reason. Why? Because they're stitching together two separate videos.

Shits lame. /rant

Oh, if you're curious as to the technical "how", here's a neat video on it from one of my favorite YouTube channels: