Transmission of HIV after one exposure to penetrative vaginal intercourse is 0.05 to 0.15 percent. Further, they removed the longtime tradition that the law applied only to penetrative intercourse. There are laws prohibiting all kinds of sexual activity between relatives, not necessarily penetrative sex. Women accused of having been penetrative during sexual activity were subject to ridicule or punishment. HPV is most commonly transmitted through penetrative sex. The term "tribadism" originally encompassed societal beliefs about women's capability of being penetrative sexual partners. Fingering may be self-fingering, one-sided, mutual, penetrative or non-penetrative. Fludd cites the 3rd-century view of Plotinus, concerning the aether as penetrative and non-material.