The stereotype about married Jewish women not liking oral sex or any sex for that matter is best exemplified by the following Jewish American princess joke most of you have probably heard before:
Q. How do you stop a Jewish woman from having sex?
A. You marry her.

Now before any of my female Jewish readers accuse me of misogyny I should point out that I have posted an equal share of jokes about Jewish men and more than enough jokes about women of every ethnic stripe. I am an equal opportunity jester. And yes I know that many Jewish women fought in the resistance during World War II and participated in the establishment of the State of Israel but asking for immunity from a joke is unAmerican.

Here's another related joke:

A man wonders if having sex on the Sabbath is a sin because he is not sure if sex is work or play. He asks a priest for his opinion on this question.

The priest says after consulting the Bible, "My son, after an exhaustive search I am positive sex is work and is not permitted on Sundays."

The man thinks: “What does a priest know of sex?" He goes to minister, a married man, experienced, for the answer.

He queries the minister and receives the same reply. “Sex is work and not for the Sabbath!”

Not pleased with the reply, he seeks out the ultimate authority: a man of thousands of years’ tradition and knowledge: A Rabbi.

The Rabbi ponders the question and states, "My son, sex is definitely play."
The man replies, "Rabbi, how can you be so sure when so many others tell me sex is work?!"

The Rabbi softly speaks, "If sex were work...my wife would have the maid do it.”

Despite the jokes, a little bit of trivia: it is against Jewish law for a husband and wife not to have sex:

Jerusalem Post, 4 Apr 2008, Murky waters

In Jewish law, marital sex is an obligation that the husband must provide to his wife. The unwillingness of either husband or wife over a prolonged period of time to have sexual relations can provide a justification for a rabbinic court to force the couple to get divorced.

Of course in Islamic Law, sex is an obligation that non-Muslim slave women must provide to Muslim men:

Answering Islam Blog
Slave-girls as sexual property in the Quran

The Quran in Sura 23:5-6 says:

5 [Most certainly true believers]... guard their private parts scrupulously, 6 except with regard to their wives and those who are legally in their possession, for in that case they shall not be blameworthy. (Sayyid Abul A’La Maududi, The Meaning of the Quran, vol. 3, p. 237)

The key words are "those who are legally in their possession." Maududi (d. 1979) is a highly respected commentator on the Quran, and he interprets the plain meaning of the clause, saying that sex with slave-girls is lawful.

As a Muslim you can either buy a slave girl or get one for free from Jihad:

Hot Air Blog, 19 Aug 2007, Blogging the Qur’an: Sura 4, “Women,” verses 1-16

During Jihad (religion war), many men and women become war captives. The Amirul Mu’minin [leader of the believers, or caliph – an office now vacant] has the choice of distributing them amongst the Mujahidin [warriors of jihad], in which event they will become the property of these Mujahidin. This enslavement is the penalty for disbelief (kufr).

But to be fair to Muslim women as I have been to Jewish women, here's a Muslim joke for balance:

Q. How do you stop a Muslim woman from having sex?
A. Kill her.