high body counts

i have no intention of being disrespectful, just a question. how do girls have sex w so many guys, & not even feel bad about themselves? i just dont get it? to carelessly have meaningless sex w guys, & guys you dont even know, one night stands, drunk after party sex, how do you do it, to give yourself up to someone who doesnt give a fuck about anything else besides getting off? w guys you barely know who may or may not have an std? what is the point in this, why do girls do it? again not implying girls who do this deserve less respect or are sluts, just asking how & why bc i simply do not understand it