I just googled in Iranian and Arab internet and they're selling virgin chip. Basically it tests if the girl is virgin or not. Men there don't marry women who'd sex earlier. So, basically, once the girl is 16(or you could use it any age of the girl); you keep the virgin chip in her hole. Now, for every thrust that hole experiences, the virgin chip counts 1. It counts only 1 thrust every 12 hrs, i.e if someone experiences 12 hammers in hole in 12 hrs, it'd be detected as "1" sex. I was quite surprised of it. Why aren't we doing this in Nepal? This is a great idea.