Hi Tickleit, I'm pretty new to this activity so take that into account. I did lotttts of research before I started though, and my understanding is that what is included in a PSE level service is open to interpretation, or rather open to the discretion of that particular provider, though generally would include some things that one may see in porn. There is not a concept of it automatically means bare services or greek (or any specific act). But generally most providers who offer that (though they may or may not have ever worked in porn industry) would be ready willing and able to do some wilder, perhaps kinkier, perhaps more skilled, activities and services. Perhaps they would have more indurance, exceptional skills things like that. Newbie here so what do I know.... but these are sentiments I have learned from actual providers who do offer a PSE service, I hope that helps!