Time to post a book, Askel!
Why not read the book.
Yes. Gen 38:9-10.
He knowing that the children should not be his, when he went in to his brother's wife, he spilled his seed upon the ground, lest children should be born in his brother's name.And therefore the Lord slew him, because he did a detestable thing:
Here is an excellent article discussing the Scriptural teaching: The Sin of Onan Revisited.
Did you try reading the definition of "sodomy" in the dictionary?
Read Hebrews..the marriage bed is un-defilable.
My question is, is there any biblical indication that certain sexual practices (for example, oral sex) are forbidden between a married couple?
1 Corinthians, Chapter 72: Nevertheless, to avoid fornication, let every man have his own wife, and let every woman have her own husband.
3: Let the husband render unto the wife due benevolence: and likewise also the wife unto the husband.
4: The wife hath not power of her own body, but the husband: and likewise also the husband hath not power of his own body, but the wife.
5: Defraud ye not one the other, except it be with consent for a time, that ye may give yourselves to fasting and prayer; and come together again, that Satan tempt you not for your incontinency.The Epistle to the Hebrews, Chapter 134: Marriage is honourable in all, and the bed undefiled: but whoremongers and adulterers God will judge.
I would recommend three Christian books to get started with.
1. 'The Gift of Sex' by Penner
2. 'Intended for pleasure' by Wheat
3. 'Sacred Romance' by Tommy Nelson
As for oral sex, these books cover that area.
Song of Songs 4:16 has this to say about oral sex (there are other references as well):
"Awake, north wind, and come south wind! Blow on my garden, that its fragrence may spread abroad. Let my lover come into his garden and taste its choice fruits"
In other words, oral sex is not prohibited. The New Testament says that the marriage bed is undefiled. There is great freedom in the area of sexual expression within marriage. One Christian writer has summed it up this way. As long as it doesn't involve pain, pornography or other people; AND both husband and wife are agreeable, the is nothing prohibited.
You will hear some people say that Onan sinned when he "spilled his seed", but the real sin of Onan was his disobedience to a command of God. The spilling of his seed in that instance was merely the form of the disobedience. In the kJV there is even a reference to the beloved (wife) tasting the seed of the lover (husband). The Penner book states that whatever objection one might have to oral sex, it can't be supported by scripture.
Also, don't be fooled by those who say Song of Songs is merely an allegory about God's relationship to his people. There is simply too much in there that cannot be 'allegorized'.
As an example, read Song of Songs 8:14 "Come away, my lover (husband), and be like a gazelle or like a young stag on the spice-laden mountains."
The NIV foot note says "Display you virile strength and agility for my delight". No way can one allegorize this passage.
The Tommy Nelson book mentioned in an earlier posts talks about the fact that the New Testament was actually written in the common language of the people, and the term associated with that greek form of language is the root word for the word vulgar. IOW, it is OK to use common slang words with your spouse when taling about sex. In other words, what the beloved (wife) in SoS 8:14 is saying to her lover (husband) is "FMN".
Read First Corinithians. It has a lot about the relationship between husband and wife.
Nope, anything goes, IMO.
I would say that a major prohibition would be adulterous thoughts while having relations with your spouse. Our secular world (and some in the religious world) insist that it's okay to fantasize about having another partner during sex to "spice things up". But in reality that is the same thing as doing it in God's eyes.
...within marriage.
Dude, whatever you and your wife want to do with each other. I really don't know of any specific stuff about couples and sex, but I'd be careful what the Old Testament says. I think by some rule a lot of that stuff was nullified by Jesus (Mosaic law?), and the sexual practices were just for the Jews for specific reasons, though the general stuff like no beastiality and no homosexuality still applies. You know, just the real specific stuff doesn't apply, like spilling your seed or not having sex during menstruation period (though I don't know why anyone would want to). I don't really know, but I'd say whatever y'all want to do that doesn't involve any 3rd parties. Not sure if the sodomy law applies only to dudes or to heterosexual couples as well (sorry if I'm being a little graphic, just making a point). Just remember that God designed sex for the dual purposes of procreation and pleasure for married couples, and in that context it is a wholesome activity in itself, for keeping the human race going and solidifying intimacy between man and woman. But then again, don't take spiritual advice from me, cause I've fallen away from church and believing in Christianity over the past couple of years. STill kept the core values I was taught by my family and church though, which is why I'm a conservative. Good luck finding an answer. Maybe try the Focus on the Family website? (www.family.org) They have free books about all kinds of stuff pertaining to couples on there. If you never heard of it, it's basically a conservative Christian ministry that places a lot of emphasis on maintaining healthy, Christian families, and has lots of advice about marriage, even sexual intimacy. Try that if you're still looking for answers.
homosexuality is an abomination as is bestiality. Adultery is forbidden. Fornication is forbidden.
There are no other restrictions so far as I remember.
Differing religions appear to have differing teachings -some not reconciled with others -what is your religion?