Dude one lie will just lead to another. I've been guilty of this. It doesn't help. I would suggest you be honest about your virginity.
I've been particularly guilty of hiding my lack of success with women. It really gets you nowhere. The girl will see right through your BS or find out one way or another.
Once you accept that there is nothing wrong with being a virgin, you will be free! Free from the burden of having to hide it, free from making up new lies, free to be who you really are.
Remember, what Johnny Depp's character John Dillinger in the movie "Public Enemies", a bank robber, says to the girl when she asks him about his past: "It doesn't matter where I'm coming from, it's where I'm going that is important"
He doesn't say that because he's ashamed of his past or is hiding anything. He says that to her because he's in control of his present and is about to take her on an adventure she'll never forget.
All the best man.