in 2003, julia v bailey and her research team published data based on a sample from the united kingdom of 803 lesbian and bisexual women attending two london lesbian sexual health clinics and 415 women who have sex with women (wsw) from a community sample; the study reported that the most commonly cited sexual practices between women "were oral sex, digital vaginal penetration, mutual masturbation, and tribadism (frottage with genital-to-genital contact or rubbing of the genitals against another part of the partner's body), each of which occurred in 85% of [women who have sex with women]". like older studies, the data also showed that vaginal penetration with dildos, or with other sex toys, among women who have sex with women is rare. a 2012 online survey of 3,116 women who have sex with women, published in "the bmj", found the majority of women reporting a history of genital rubbing (99.8%), vaginal fingering (99.2%), genital scissoring (90.8%), cunnilingus (98.8%) and vibrator use (74.1%).