My wife, who is now 74 (I am 76) was not good in felatio when we werer married. But after a lot of assidious practice, she became very good and developed her skill to near perfection. The key to her success were patience and feedback. In fact she kept a little booklet where she took notes after sessions and did a post ejaculation debriefing so that she was always learning and honing her skill down. She is truly masterful. She makes me feel really nice. This is true.