I have been the fist 13 times in my life. Of those were two times where it was a GF of the girl I was with who just wanted her virginity taken. None of those come close to the pleasure of a mature woman who knows how to fuck
It is an interesting feeling, I have done before. We then had her friend join us in bed a LOT until she got worried i like the friends pussy better than hers. By then I had her friend broken in real nice.