"The thirteenth century Provençal Jewish wrier
Isaac ben Ydaiah, for example, appears to have been concerned not only that women might want to cheat, but that when they did they would find more pleasurable options outside of their communities.
According to him, you see, Jewish women were at risk of being interested in having sex with gentiles because gentiles were uncircumcised. Isaac believed that removing the foreskin made penises more sensitive, and as a result, circumcised men reached orgasm more quickly than their uncircumcised counterparts, reducing the pleasure that women could experience. Dude lays it out like this:
If a woman gets with an uncircumcised man however, she will…