I personally think that each version of sex should have it's own virginity. Done
anal, but no vaginal; then a vaginal virgin. But, in the big picture, when you cross into penetration (not counting oral - Bill Clinton is right on this one!!!!!!!!) I would consider your virginity to be lost. Anything I haven't done I would consider myself to be a virgin in. I am a skydiving version, for example. That is my take on it.