As we all know it is not God's will for a Christian woman to ever experience orgasm. (2nd Timothy 2:22)
It is also not God's plan for her to molest herself or to have intercourse before marriage (1 Corinthians 6:18) and I think I may have found the answer. Far more permanent than a chastity belt!
To avoid some of the more course language used in reference to female genetalia I will link to the most unbiased source I could find, but will summarize the answer below.
To summarize without the specifics, It is a way to not only ensure a Godly woman will never experience an unwanted orgasm, but also a way to make certain our daughters stay virginal. In fact, it can be checked from the outside, as her husband will have to cut her open after marriage!
Many countries consider this practice barbaric but I believe it is just their way of spitting in the face of our Lord!