all three of these have a few things in common. all are "intimacies". all are based on extreme trust and vulnerability, and all are very reliant on exclusivity. if a man has never sexually given himself to any woman but one, then she can rest easy, knowing that the sexual man she knows is the full story of his sexuality, which enables her to more fully engage with him with her own sexuality. by having "casual sex", you are bonding with someone in a way that cannot be fully realized, and will be broken. even if you know (or even agree with her) ahead of time that "this is just a casual hookup", you cannot really stop your body and mind from bonding into this doomed relationship. you cannot do this without permanent damage to your ability to fully bond with the one. for you in the end. people who have casual sex are robbing themselves and their future spouse of very important connectivity that they should rightly be giving to eachother.
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