In my case, I was 18 when I first gave and received oral.

Unfortunately, for me her wisdom teeth are coming in and she hasn't been able to take me all the way orally because her jaw will lock-up and she has to pull away.. ( fear of biting it off )

The first time I gave oral to her, it was good for her but notr as good as I do on her now.

Since we decided to wait until we are married on actually having sex ( religious reasons and personal morals ) it's the best thing I can do to her. I've gotten to the point of being able to make her have multiple orgasms at once and completely draining her body of energy ( for like 10 minutes anyways :rolleyes. I love giving oral to her, the tatse, her wetness, the warmth, and the way it makes her moan and say my name.