
Fun fact: In Christian mythology this is known as a J-job and is well established as the only form of premarital sex that is not a sin.
In the 1500's it was common to masturbate with a hollowed out wheel of cheese. Pope Clement VII officially declared this a J-job so long as the cheese was possessed with the Holy Ghost, formalizing a solemn prayer that could be said immediately prior to orgasm of "Jesus, take the wheel".