Porn contains: pov blowjob, cowgirl pov, passionate sex, cowgirl, cum in mouth, cum swallow, hot fuck, sloppy blowjob, amateur blowjob, amateur couple, hot sex.
Porn contains: cum in mouth, cum swallow, amateur blowjob, suck, cock sucking, blowjob cum in mouth, surprise cum mouth, pulsating cum mouth, blowjob swallow, sloppy blowjob.
Porn contains: point of view, sloppy blowjob, outdoor blowjob, public blowjob, amateur swallow, pov blowjob, gonzo, cum in mouth, cum swallow, surprise cum mouth.
I'm sure it's better to search for porn with tags rather than categories. Usually authors specify a few general categories and lots and lots of qualifying tags. Here's a list of the most popular amateur porn tags. Not enough? Below is a link to all the tags used on Hobby.porn.