The term virgin is used to describe someone who has never had sexual intercourse. There are a few different ways that people can remain virgins. Some people have never had any type of sexual contact whatsoever, while others may have engaged in everything except for penetration. In order to lose one's virginity, all it takes is for there to be penetration of the vagina by a penis. This can happen through sexual intercourse, but also through other activities, such as using sex toys or fingering.
There is no single person or organization who supplies virgins. Instead, it is something that each individual decides for themselves whether or not they want to do. Some people may choose to remain virgins forever, while others may only do so until they find the right partner with whom they feel comfortable enough to have sex. There is no right or wrong answer when it comes to being a virgin - it is entirely up to the individual person and what they are comfortable with.