My Virginity

So today I told the older woman who comes to the 7-Eleven I worked that, I have feelings for her. She wants to have sex with me, she rooked me in the bathroom and gave me head. I enjoyed because it’s been so long since I had a sexual pleasure moment. But now she wants to have sex on my day off, how do I tell her I’m still a virgin, I don’t wanna be one but I don’t want her to judge me also. What should I do???? I’m stuck between a Rock and a hard place.