I think it maybe depend on the time in your life if your jut looking for a girlfriend or trying to get one for your future wife! I think we all react a bit different and nicer to a girl that we're trying to win over and not be to demanding on her as to have her take off right away!
I had a playful girlfriend that was just for sexual moments and she was good at it too, but we both were never serious. She came into my buddy's BAR one night with a girlfriend of hers, but I'm not sure what I was thinking about mostly at that time until she got my attention by telling me her girlfriend who was extra Busty really enjoys having SEX! After a short time period my so called girlfriend said she had to leave and asked if I could take her girlfriend home, I said sure and we took off at closing time but she just wanted me to drive around.
She started rubbing my crotch so I found a place to park, I got to her huge tits by the time she had my cock out and she did great on enjoying ever part of it! She let me cum on her tits and every time I took her out she did oral and SEX.
As for my wife the 1st night that I got introduced to her at the same buddy's BAR, we hit if off and went to my house for more drinks and SEX! Besides doing oral she stopped to tell me that I could CUM in her mouth and she'll swallow it! My reason for meeting up with her in the 1st place was 2 other guys from the BAR told me the same thing happened to them and she did the same to them both not together! I never had a girl / woman let me CUM in her mouth till then and we kept of going out and finally got married!
But I had a nice collection of GF's that were late bloomers on doing oral and would take weeks before doing it on me too!