A website called Christian Nymphos has been set up by a group of wives to encourage young women to embrace intimacy in their marriages.
The site dispenses advice on how couples can spice up their love life without breaking God's laws, reports the Daily Telegraph.
Suggestions for new sexual positions, scenarios and games are published alongside to links to Bible study websites.
"God wants us to be madly in love with our husbands," wrote the anonymous women behind the site. "He wants us to keep that fire burning in our marriage beds."
Of the website's provocative name, they add: "The word Nympho has a negative connotation for some. It doesn't have to stay this way."
Although the tone of discussion can be explicit - oral sex, orgasms and sex aides are frequently discussed - the moral message is still strong.
Sex outside of marriage is forbidden, masturbation is frowned upon, and erotica is only acceptable if the characters are married.
Christian Nymphos has had more than 800,000 visits since its launch last year.
"It's good to know that there are Godly women who are not ashamed of the blessing of marital sexual love," wrote one reader.