Whats the best way/method to determine it?

I don't know why this is needed. Almost all women don't care about that. They care more about trust and loyalty in the relationship. This is what i learnt from the ladies.

Jus askin

A men prevelege is that you loose ur verginity at 13 n sasura , noone cares .

Your topic relates to " jo khaae o pachhataae jo na khaae o bhi pachaataaae "
It is in your skin how your look at it.
If you are not virgin means you know how to "Fuck and enjoy first night with your newly married spouse". That is all.

You can have sex to find that out..

केशरवा, मलाई भनेको कि लोगनवा लै भनेको ?

तिम्रा thread ho timilai nai vaneko ho ni.