little more explanation of my question  ...

I've always liked sloppy slurpy deep throat and usually pick providers who have a reputation for doing this.

Back when I first started, I didn't care much for heavy tattoos, especially if certain vital areas were covered.  But there was a provider I saw for a couple of years almost a decade ago that had the most extensive body art that I had seen to date, and given her artistic nature (she was degreed in fine arts from UCLA, and one of the most intellectual ladies I've ever known), it was apropos.  What was once a turn-off became a turn-on, or neutral at worst.   Now, if she has interesting body art, it's a topic for conversation, and most ladies with tats are more than happy to explain their rationale.  

which seems to be a lot of ladies favorite. I'm tall and sometime the positioning is awkward until I met this young, free-spirited young lady who would get all fours, spread herself open for me at just the right height, and just the perfect angle, with the perfect view of her utterly perfect amazing ass and pussy. From that position I was in heaven when I was fucking her. I looked forward for her to come over for that sole reason. And although I've enjoyed the position occasionally since then, no one has ever been able to match her positioning, enjoyment, and backward thrusting onto my cock, as I could stay motionless and she could drive me up a wall. She always smoked a joint in her car before she came in. And she was stunning.

That sounds excruciatingly wonderful ... road trip?  Lol

I know you asked for hobbyists, but this question just opened the flood gates in my memory bank, and I had to join the conversation. I have had several of these moments throughout my life, and now career. I was a late bloomer when it came to sex/sexuality, and stated out very conservative, as many of us do. While I was always very liberal in my view points about others rights, I had never thought about experimenting with someone of the same sex myself. That was until I was at a bachelor party. I've always been 'one of the guys' in my athletic circles, so I was invited along as the only woman in the group. There were strippers of course, and when they did their show, one of them grabbed me, and sat me in the circle on a chair and straddled me, (at this point my face is fire engine red), and she proceeds to make out with me. I loved it!! And while I still prefer the company of men over women, I do enjoy the occasional experience with other women.  

I'm quite petite. 5' even, and 110, so positioning can be challenging sometimes, but I love a good challenge. The edge of the bed, with the guy standing can work well, and gives the guy even more thrusting power. When on the bed, I find that often keeping my legs squeezed together, while the man spreads his legs around mine, evens out the height difference a bit. I might even put a firm pillow or two under my knees to bring me up to his height. And then there was this one time I was on a step stool, bent over the bathroom sink......

here is a review I wrote on Kitty Rains.......has to be one of the best providers anywhere.  Had never been with someone who squirted before........was completely surprised by my reaction........of course if she was not immaculate in every way...........then I could never have............

very articulate......thought provoking post.........and hot!!

I recall the first time I saw heavy ink.  
I was revulsed at first. (Pre TER) but then something clicked and now I'm a big fan.  

...my experiences prior to the hobby had been with women similar to me (except several who were older) -- same education, mostly same age, 5'3" to 5'7", athletic, white or Hispanic, natural breasts, etc.  

I never thought I would enjoy kissing a smoker until I met one lady I could have spent the whole session kissing. Besides the fact that she was a good kisser, there was something about the taste of her mouth, like a fresh, smooth cigarette mixed with something else. Not gum. Something organic. It made me understand why people smoke.

....like a love for tribadism, which was something that I felt 'meh' about until a particularly talented stripper used me as her own experimental open canvas and showed me how it really should be done.

Here's the real low down

Was with a provider in fact and she casually warned me in advance that I might not want to be doing oral on her in her condition (i.e. ready to squirt). I was feeling adventurous and just said "Fuck it. Unleash the flood gates."

Nope, never changing my mind on this one.
Have had a couple of providers change my opinion on a couple of things but this one is a deal breaker for me.
More than one small tat and I'm not interested no matter how gorgeous and interesting she is.

i usually lays my money down, lay back and let the lady do her number on me.

the best session i ever had... the best sex i ever had... the most times i got it up and in... the greatest number of positions in one session... the most times i came... the most times i knew for sure she came...  

'liked' for the 22 year olds who like us old farts...

yeah, if she said "scissor sisters" i wouldn't have had to use google...

when i can't get it for free, i have no problem buying it!

put on her website that "my pics are photoshopped because of art on my arms". So, I didn't know what to expect. Art is no longer a turnoff for me now. Not saying I will go looking for it but I will not move on if I come across a provider I would like to see who has lots of tats.

I never much liked the idea of rimming a woman. However, I was recently doing a 69 with a provider who moved her flexible little body so that my tongue slipped away from her pussy and clit and presented her cute little anus to it. She was the most squeaky clean provider I have every been with (and insists on the same for clients), so I went for it. Since then, I have done it with her several times and enjoyed it as part of our oral play. I am not sure that I would do it with someone else, but  it will be a regular part of my sex with her.

I've dated two guys who have smoked. The guy in whom I currently have interest smokes as well...

...the actress from "Blindspot" (they're not real).

I have my preferences, but I can appreciate most women, they are all unique. Just remember the dynamics of the relationship, it's transactional

I've been in my share of doubles, and seen that happen a few times, but never knew there was a specific term for it. You learn something new every day!  

The latter isn't your thing, and the former isn't a feasible option for me. However, I thought that we all knew more about what different gender pairings did with each other.