Strap-on Dildos are harnesses that are used to secure a dildo to your body to enable hands-free penetration of your partner during sex. Strap-ons are usually associated with lesbian sex, although many couples can explore the pleasures of gender-bending, sexual role-playing, bdsm power exchange and strap-on fun. For women, penetrating a male or female partner can be a very erotic experience that explores a new level of intimacy. For men, being penetrated anally will stimulate the prostate gland or P-spot and enhance orgasms.