He uses the teen girls to act out his fantasies. He does have true feelings for one of the girls but he uses the other girl. When he has sex with the rich girl he is just acting on lust, and making her feel better about her self so he can use her. Sex to this man is a good feeling. I think that he does not associate sex with love.
Kids is an easy movie to analyze.
The two teen boys are white boys who could be defined as poor. Their ideal person to have sex with is young virgins. The main character is obsessed with virgins while his friend will have sex with who ever he can. The boys feel that sex is something that you do to be cool. The more young virgins you can have sex with the cooler you are.