Just so you know, he's watching the nastiest clip I've ever seen, 2 Girls 1 Cup, which people usually send to gross their friends out. That's definitely not a recommendation, by the way.
PS: Definitely do not go searching for that video, and if you do, don't watch it at work. I think it might actually be a breach to even mention that video. It's vile. But the "reaction shot of people watching 2 girls one cup" is a big YouTube thing now, and that's what this video is a parody of, so I thought I'd mention it.