Prior to seeing my first Asian provider, I had adopted the fantasy that is portrayed in many period dramas of the demure, submissive, quiet Asian woman who would submit to my domination and desires.  Once I entered the AAMP, I was met with an aggressive woman who pulled off my clothes, dropped to her knees, and blew me until I was on the edge, then got up, marched me to the shower, took over washing me down, then back to the bedroom where she took me through a porn movie's worth of different activities and positions.  It totally blew my fantasy about Asian women, but unlike you, I may have been stunned, but I was NOT disappointed, and have been back a few thousand times between more than 600 different Asian providers.  Some are better than others, and there is an occasional disappointment in their looks or service compared to the advertising hype and/or my expectations, but overall, I remain sold on this kind of experience.  Excellent value for the money.  

Had seen anal sex in porn and thought it looked interesting.  My first time was with a girl who has also never done it before.  Neither one of us thought about "cleaning out" in advance.  Have not had any further interest in doing it.

I had my first FMF with a couple of low tier providers, I was very new to the hobby at the time  

Let's just both could have done a better hygiene job in the nether regions.  Whew was I grossed out.  

I have had many since with no issue.  

I think the same can be said for most of us. A big titted "brickhouse" walks by and we literally break our necks to get a better look, but personally I find huge tits kind of distracting and even offputting when actually having sex with a gal with huge knockers.  

 
Back to your example about super skinny girls though, I too have always loved spinners and still do, but there is a definite downside to girls who have no meat on their bones at all. Now this won't bother you guys who are done in five minutes, but for those of us who last a while, a pelvic bone with no "cushion" to it being rammed against you for an hour or so will actually cause a nasty bruise. I fucked this really skinny girl one time and we must have gone at it for two hours at least, I woke up in the morning really sore "down there" and I found myself with a bruise that looked like a horse had kicked me. (note to self, next time roll her over for doggie. lol)

When I was in school, in 1987, I went to an event at a Blockbuster Video store where several Playboy playmates were signing autographs. I knew all of them from their pictures and was very excited to see them in person.  

They were awful-looking. Bad skin, bad tans, caked-on makeup, bodies not in great shape, frizzy hair. I was shocked -- and I'm not easily shocked.  

I learned the Great Lesson Airbrushing that day and a big fantasy of mine died on the floor inside that Blockbuster.