GEN1192 It was taught in the forum of R. Yishmael: “One should always speak ‘cleanly,’ for in relation to a zav [a man afflicted with a genital flow] the Torah referred to his seat as merkav [connoting straddling with the legs], whereas in relation to a zavah [a woman so afflicted], her seat is referred to as moshav [connoting a side-saddle position.] But is it not written: ‘And Rivkah and her maidens arose and rode [vatirkavnah (straddling)] on the camels’! – Because of their fear of [being thrown from] the camels’! – Because of their fear of [being thrown from] the camels, this position was considered natural [and not immodest]” Pesachim 3a TEMIMAH-GEN 113