This group of therapists are sex-positive and kink-friendly. They have open attitudes and specialized knowledge about sexuality and sexual expression. Sex positive therapists support bisexuality, asexuality, solo sexuality (interested in masturbation only), sexual fluidity, and fetish sexuality, among other types. A kink-friendly therapist is non-judgemental, and respects sexual preferences (such as role-playing, BDSM, humiliation, or impact play) that fall outside of sexual activities that traditional society considers acceptable.