Definitely chastity and no sex with women shrinks the penis, at least it happened to me. i never had a big penis, but mine is clearly smaller than 20 years ago. my Wife makes fun of it almost every day. For her my nickname is "chizito", the Spanish word for "cheese puffs", but in Spanish the "-ito" form means "little", so is kind of saying "little cheese puff". All her friends call me that way: "chizito", and they laugh laudly each time. i think that the fact, that as a faggot slave y have no personal sex pleasure when MEN uses me, so i remain with no erection, may have added also a lot to my shrinkage.