Licking A Dick WHILE It’s Going Into Someone Else’s Butthole?

In today's amateur video, a sexy and HONGRY pair of lips absolutely go to town on the point of contact between two dudes having sex. The boy wet vacs Top's balls, taint, and even his dick when it comes up for air, and I'm guessing Bottom is getting some pleasure out of the extra sensation as well. This isn't the craziest idea in the world and it's been done in porn, but this guy stands out from the crowd for being, what's the word, THOROUGH. I'm still processing everything that I'm seeing so I really don't even know what to say. Just, wowza.