I hate the word slut. One of my first girlfriends had a reputation of being an easy lay, which she admittedly was, but the guys calling her a slut used to really piss me off. She just liked sex, and there wasn't any reason to be derogatory about it towards her. She was the first woman to cuckold me, but I didn't see it that way at the time, because I was having way too much fun with her.
I despise the word whore, too. I had three girlfriends who were "in the business" so to speak, and they all preferred NOT to be called a whore. I enjoyed dating and living with all three, and would have married any of them if things had worked out between us.
I've always felt women had as much right to recreational sex as men do, and felt the name calling towards the women was extremely unfair, whether they accepted money for favors or not.