"Chastity"

Chastity is a virtue or a fault, What do you think?

I think chastity is a virtue,

Because casual sex can hurt you.

;-)

I suppose so!! I think you´re right , but How can I expand this idea???

Perhaps you could compare the lives of those who remained chaste throughout their teenage years to the lives of those who "experimented" with sex and experienced all its joys and pitfalls (statistically and otherwise). Then have the reader decide for himself or herself which is the better choice. That is, at least, one possibility.