Make good use of your tongue
This is not just about oral sex, but has a deeper meaning: conversation. Oral sex may be seen as a "gift" from her, but being willing to talk about your sex life together is even more important. Break down barriers from time to time, ask her about her true feelings, and try to understand the source of her pleasure from her perspective. You will benefit greatly from this. Also, don't forget to make pleasurable sounds during intercourse; don't be shy, she needs to know and feel that you are truly happy.
Give her a kiss
A wonderful kiss represents the pinnacle of communication. Forget the mechanical moves—pressing on her lips, sliding your tongue in, then a deep kiss with tongues entwined. A truly unforgettable kiss is all about "feeling." Pay attention to her soft breathing; when she takes a breath, capture her watery eyes with your passionate gaze, letting her know how much you cherish her.