went in once....still virgin???

I might as will say no.

It depends on what "IT" is... are you talking about your finger? His penis?
A dildo? a banana? A spoon?

And which oriface? Mouth? Anus? Vagina? Belly button? Fist? Vulva?

I think I agree with the above posters...
If you've had ANY penetration of a penis for any time at all, by definition, you are no longer a virgin.

But then, who needs to know?
If you're not pregnant, then what difference does it make. It's nobody else's business!
Right? 8)