Being a man in his late 30's, most of the women I get intimate with anymore has long since lost their virginities. I haven't gotten with a virgin since I was in my early 20's. From my point of view, I never knew a difference as far as how it felt. The only thing I noticed about getting with a virgin versus getting with someone sexually experienced is that virgins are more timid and unrelaxed, which is natural since this is the first time they are doing it.
I am going to let you in on a secret. Everyone's first time is going to be lacking. No matter how hard you try. Like anything else in life, you need to learn how to be proficient with practice. You have to learn about yourself sexually as well as what your partner likes. You need to learn what turns you on and what gets you off. You need to relax and get caught up in the moment. Most of all you need to learn how to create the mood that is inducive for sex.