I want to describe a rather unique situation. Years ago I met this 40-something housewife on a BDSM-themed, text-based site (dozens and dozens of users online at once, everyone makes up a name, a text description of what they want to be perceived to be, there are "rooms" to wander around in and out of, and commands to use on each other. all text-based, limits of your imagination kind of deal).
We had incredibly hot "netsex" on the site, I convinced her to move to phone sex. She squirted for the first time ever doing this.
She became very submissive to me, I was her Master and she my slave despite us being 1000 miles apart. I trained her to use her muscles in her pussy to cum on demand for me, to be horny all the time, to dress more sexy when I wanted and to flirt with men RL (real life, vs VR on the text sites).
She had only ever been with her husband, who was her late-teens sweetheart and they married. Never had another cock. Her willingness to explore with me was 'helped' by the fact that her hubby was a 4-5" dick at best, and had ED issues and just didn't try to do much for her. I taught her a whole new sexual side to herself.
This culminated with her flirting with a black friend of theirs, to him feeling her up all over in his car during a smoke break out at a bar, to him eventually fucking her with his 9" BBC and her blowing him a bunch of times.
It was a slow but steady process, to turn her from this rather innocent midwest housewife into a woman who craved a huge cock, who never imagined with being with ANYONE else and ended up with a BBC.