@mouffette first of all fuck off with your proper lives statement, since when are you some master of how I should live my life and what should I deny myself to have and experience. Second, men don't call men sluts mostly because they're not often attracted to other men, whoever feels attracted to them has the right to call them that if they share the same principles as we do, jellybones statement is independent of this anyway (and is backed by stats), amazing how you can conceive your reply as some kind of rebuttal.
Now onto the core issue, virginity is either lost or maintained; those who think that it is some burden can be ignored for the purposes of the discussion (as this views somehow implies a gain from an arbitrary loss is greatly better);, whether she's promiscuous or slut is not the kernel of our contention, it's not the matter of the word in itself, it's the full explanation of it within the action of the subject at stake, others have put it in a sufficiently good way so I need not to expand on it, because it's the same as asking how tall must a mount of rocks be to be a mountain, it's not the specific number, it's the mentality behind the action, in this case the shallowness. Now back to virginity, virginity implies a uniqueness in experience, i.e, we only have a first time once, everyone who fully loves another wants to maximize the amount of first experiences that it shares with the loved one, the problem here is how one views love, simply being nice doesn't cut it, psychopaths are usually nice and outward people, I wouldn't call them good partners for it, so in giving this up you dissociate the one which might convey the fullness of love from this experience (I defend this for both genders) which is not only a matter of physical intimacy but also a depper almost spiritual bonding one. Take this as an analogy, would you rather lose a finger in an accident and throw it into the trash or lose it to save another that you share a deep bond with, btw you can't cut out the same finger twice. I think you get where I'm getting at, and to end I think either gender that denies the other this experience is in the wrong.
Everyone agrees with your shitty plan statement, it's as clear as day that mangakas can't write shit generally.
Also, the core issue that jellybones mention of long term relationships, is mainly because (and I see this on you and others) comes from an egotistical self centered relation to love, what I want to receive and what I'm not willing to sacrifice for it (I recommend you read von Hildebrands defense of purity, you can take a lot from it even if it is within a Christian optic since he a phenomenologist and uses that as the analysis)