Again, another perfect point made by
@Wwanderer (I spaced the period because I did not know if it would tag you or not) Every woman is different. Even though statistically speaking according to OMGyes most women prefer specific techniques, however, this doesn't mean that you should use that particular technique on its own. You have to figure out which one works best on top of seeing if other techniques will be great for them.
Examples (leaving names out on purpose, please do not tag them unless they want to comment),
1) One provider here doesn't like full on attention to her clit, preferring teasing or light touches to their sensitive area. I also found that tonguing into her g-spot was beneficial
2) One doesn't like fingering, made that abundantly clear, as it forced me to use mostly my tongue and a technique known as tapping. Also had to lay her on her back as she preferred to be on her back rather than straddling my face.
3) One liked tapping, full-on assault of her clit, fingering and g-spot stimulation. This, however, was coupled with copious amounts of teasing, (wrote a review not up yet, but yeah. I know I just broke the request, but I think she will somewhat understand)
4) One only like g-spot stimulation
5) One loved clit and g-spot stimulation with LOTS of teasing.
As far as sex is concerned
They all preferred the same steady stroke no deviation for when they were about to orgasm. I can not stress this enough! According to OMGyes, most women prefer the same stroke and or speed for when an orgasm is about to happen. In other words, DON'T speed up or pound harder, unless they ask you to do this.
I noticed not all liked certain positions or deep stroking. I am a HUGE fan of legs on my shoulders in missionary, only a few here, hell even other providers at other agencies and in my own personal life, preferred this position. As Wwanderer stated about college GFs, I had a GF who loved this position and would orgasm every 2 seconds from this position. Naturally, I kept doing this position; however, I have to oblige any females request if they say it is too painful for them for them or it makes them uncomfortable.
DO NOT!!! DO NOT!!! Do anything that causes pain and/or makes them feel uncomfortable. I convinced my ex to try anal, but only after I saw that she enjoyed pain. She was not to keen on this, we tried it once for a bit before you knew it she was a fan the next time we went at it, requesting that I give it to her as hard and fast as I can in her rear end.
Not everyone prefers doggy. I have encountered this both in mongering and my personal life. This can be do to either them being uncomfortable, trust, or it causes pain. Roll with the punches, give them what they want.
Stroke, now this can be split into a couple of different things. Depth, once again I noticed with a particular provider that she liked short stroking in missionary, while others liked full-on stroke; still others liked a combination of the two. Speed, some prefer slow and steady at first building to fast and hard, while others like slow and steady throughout. Once again I noticed this in my personal life as well.
Teasing, oh dear god. DO NOT underestimate the power of teasing. What most guys do not understand, is that you can do a lot more with teasing than you can imagine. What this does, is build anticipation, build a connection, allow your partner to be more comfortable with you, increase vaginal secretions, so you don't have to use lube in most cases, and make it easier for one to climax. Think of it like this, go to your favorite restaurant and order your favorite item. Your mouth waters in anticipation, and you can not wait to eat this item. Once you get your order and you begin to eat, what happens? You are rewarded with bliss. Same can be applied to sex here.