There's some great advice in this thread. I think that telling a women you're a virgin is no big deal, if you tell it with the right attitude.
If you tell her like it's a big secret and like there is something terribly wrong with you, she will think the same and it will bomb.
But if you you explain her that you didn't want to screw around and want to share your sexuality with someone special, you will comes across as someone who is strong and follows his own convictions.
I also like the suggestion to let her help you explore. If you can ask her that confidently, it will make a good impression too. And give both of you some fun. She is one lucky woman!

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