Some men have a powerful sexual fantasy of masturbating while a woman watches.  And some of these men, like Louis CK, act out this fantasy. Since the women involved with Louis CK were not consensual sexual partners, their experience was to feel abused.  But what makes a man like Louis CK excited is the belief that his female audience is excited. The psychological meaning to the man is that this scenario reassures him against a great anxiety / belief that his penis, his masculinity, is toxic or insignificant.  The anxiety is so great and the need to relieve it so powerful, that the man fails to understand or care about the woman’s experience who is watching. Still, the man gets aroused because the situation reduces his anxiety and allows him to believe that he is potent and not castrated.