So I have an intuition...
I can't confirm anything, but it feels to me that since 083, the disposition of your slave toward sex is "merged". They all share the same opinion about whether they like a certain type of sex or not.
Let's take one of my test example : I have only one girl (Adora), and she LOVES any type of sex. Then i acquire 2 prude-type girls (May-lynn and Piper) and all of a sudden, the first girl dislike all type of sex. If asked, May-lynn and Piper share the same opinion.
Then I work the disposition toward each type of sex back up, but only with Adora. After a while, the 3 of them LOVES every type of sex, even throught i never touched the other 2....
Then did the same test again, but raised only the dispotion toward oral. Once again, after a while, they all share the same opinion : they all love oral, and hate vaginal and anal.
Edit : And it's not only what they say. Right after acquiring May-lyyn and Piper, Adora was WAY harder to arouse, and would even occasionaly drop into negative arousal during sex, despite undying affection and excellent sex stats.
Please note that i left BDSM out of the test entierely, as it's heavily influenced by corruption.
Once again, just an impression. I might be all wrong. And i don't know anything about coding so i can't check it.