It would be more accurate to say that these chicks fucked HER. At the same time, she at least tries to pretend that you can only have sex with someone you love, and if not, then any reason can be used as an excuse. Somewhere at the end of Volume 10 there was even a separate conversation about this. It is for this reason that she has not yet had any experience with men and only one "legal" experience with Akira. Until a certain point, she did not consider sex even with Akira to be real, since such a huge denial helped her to deny any slutty tendencies. In fact, if we forget about pure sex, then manga has even more signs of her attraction to men than women, lol.
Also, if you've noticed, Misora is passive in 90% of all lewd things, which not only makes any self-insert fantasies easier for the male audience, but also helps her maintain a pure halo. So, I would call her current sex life a collaboration between the self-instert fantasies of male readers and her denial of her slutty tendencies, lol.