wow awesome love the third oneHere are a few, I'm sure there are more out there:
Selfsucker gets a bj
Flexy selfsucker
Men who can suck their own dick and swallow - xHamster.com
straight selfsucking vintage - Pornhub.com
Monsterpumpe - xHamster.com (skip to 7:45)
Hope that helps
wow awesome love the third one