My main male character, even before set in his current novel, has always been a bit promiscuous, and in his novel, this promiscuity is what keeps the novel moving forward. But my character is trying to get me to let him have sex with not 2, not 3, but 4 characters in the novel. Two (maybe 3) are crucial to the plot, but one of them is just random, although my brain is trying to concoct reasons as to why it would work. Anyways what I'm trying to say is, will my character be unlikeable because of how willing he is to have sex with multiple people, even if its crucial to the plot? Is it okay to have a character like that if that's who he truly is, a guy who likes to have fun? What should I do?