Truly being with a beautiful and naked woman is a great start for him to feel sex is fabulous. Next it's important to a man to feel he's in charge sexually so don't take charge. You can certainly 'set the mood' before hand. Candles, soft music, (anything that helps you feel sexy and relaxed) and sexy lingerie (for both of you). Do whatever will help you feel excited so you'll be lubricated when it comes time for intercourse.
Be receptive physically and encourage him to explore your body. It will help him feel successful when you tell him each time he does something you like. You might not be completely satisfied that first time and it sounds like that would be okay with you.
What a lucky guy to have a woman who cares so much about making his first time memorable.
I hope you'll let me know how it goes.
Your Tango Expert
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