according to most religiose texts. even thinking about sex (lust) is a sin. but according to a black book I read. there was this guy, that walked on water, raised the dead and cured the blind.
that got nailed to a wooden stand then stabbed in the side, just so he could walk into the depths of hell and absolve us of all that
he then showed back up showed the holes in his hands as proof that he rose, and told all he seen, that who so ever believes in him shall be saved from their sins.

and a personal aside.. even though it may be considered a sin. gods first commandment unto adam, after the creation to eve was to go forth and multiply. and I dont think he was talking about arithmetic ;-)
and secondly. if he dint want people to commit this act. he would not have made it feel so good.
I'm not saying you should run around like a dog in heat. your body is still his temple. and you should try to take care of it.
but we are all sinners in the eyes of god. none of us are perfect. so try to do the best you can in life. and in death, god will sort us out.

PS:
if your doing it right, it brings a lot of women to prayer;; (OH GOD!! OH GOD!! YES THANK YOU, RIGHT THERE OH GOD, YES!!!!

As man nothing, consult your Bible. You seem literate.

God created the beings and created in them the lust for reproduction so that life could continue normally. He made man the best of these beings by giving him a distinguished mind. Life requires good organization in everything. Among these things is sexual activity, as God organized it through marriage and prohibited relationships outside marriage to preserve society.
The saying we are all sinners is true, but whoever commits a disobedience to what God has commanded must be punished in this world or in the hereafter. As for small mistakes, God will forgive them.
The Quran says: "They are those who avoid enormities of sin and the indecencies except the small ones. Surely your Lord is the One Who is Vast in Forgiveness. He is the One Who knows you better. He had created you from the earth and you were embryos in the wombs of your mothers. So do not put your souls in the clear (do not assert that you have cleansed your souls). He (God) knows better who the owner of piety is."

A godless society (like today) is chaos. Too many parents raised their children without religion, chores, punishment, etc. . All of these things teach children the difference between right and wrong, among other things.
Here is what the bible says:

The Bible says, “From the beginning of creation, God ‘made them male and female’” (Genesis 1:27, Mark 10:6-8 ESV). It goes on to declare, “‘Therefore a man shall leave his father and mother and hold fast to his wife, and the two shall become one flesh’” (Mark 10:6-8, Genesis 2:24).

What Does the Bible Say about Sex Before Marriage?
Even though it is one of the clearest prohibitions in Christianity, one would be hard-pressed to find scripture on it. Many would refer to the Ten Commandments, “You shall not commit adultery,” Exodus 20:14). But this passage is about having sex with another person’s spouse.

Others might turn to the “sex chapter” in Leviticus 18 which lists every kind of perverse act that trashes the gift of sex such as bestiality, incest, threesomes, pornography, and other sexual sins.

But, before you text your girlfriend the words, “Netflix and chill,” let’s trek to 1 Corinthians 7:2. It clearly states that sex before marriage is a part of the definition of sexual immorality. In fact, all Bible passages that condemn sexual immorality as being sinful also condemn sex before marriage!

There are numerous scriptures that declare sex before marriage to be a sin (1 Corinthians 5:1; 6:13, 18; 10:8; 2 Corinthians 12:21; Galatians 5:19; Acts 15:20; Ephesians 5:3; Colossians 3:5; 1 Thessalonians 4:3). Revelation 14:4 assumes that unmarried Christian men who desire to be faithful are not having sex.

Hebrews 13:4 considers sex outside of marriage to be immoral. “Let marriage be held in honor among all, and let the marriage bed be undefiled, for God will judge the sexually immoral and adulterous.” And yes, for those of you wondering, oral sex is included in this definition.

Young people are told often, “Oral sex is not really sex.” This couldn’t be further from the truth: oral sex is sex and is meant to also be enjoyed within the confines of marriage. Please remember neither spouse should be forced or coerced into doing something he/she is not completely comfortable with. Oral sex is permissible within the confines of marriage but that’s a whole new article.

So, Is Sex Before Marriage Really Wrong?
The early chapters of the Bible were based on rules and commandments of the Jewish traditions. Sex before marriage was clearly condemned in Judaism, and the same goes for Christianity. This was the culture Jesus was raised in. These commandments and rules gave the blueprint for marriage. The words “sex outside of marriage” are never mentioned, however, it is implied that it is against God’s design.

In fact, Adam wasn’t joined to Eve until God gave her away in the first marriage union of time. The same tradition goes for Noah, Shem, Abram, and Jacob. Everyone waits until they are united in marriage to have sexual relations. That’s because the other aspect of sex is to procreate.

That’s right, God meant for us to fully enjoy sex, (Check out Proverbs 5:19). Perhaps the best book of the Bible about the joys of sex is the Song of Songs as it reminds us sex is strictly for marriage. However, there is one example of the condemnation of sex before marriage of a soon-to-be wife who had sex outside of marriage in Deuteronomy 22:13-19.

It was such a precious manner that the husband had the right to divorce her if she was found not to be a virgin. Also, because of how this law could’ve been misconstrued, laws were put in place to protect the woman as well. She had the right to prove her virginity had been taken in the marriage bed.

What Does This Mean?
The Bible promotes complete abstinence before marriage. Sex between a husband and his wife is the only form of sexual relations of which God approves. Christians can mess up and receive God’s full forgiveness. But there is a stark difference between messing up and continuing to do so with the mindset, “I can always ask for forgiveness.”

What matters is a fully repentant heart. Repentance isn’t just an attitude of the heart; it literally means to turn from the former life with a commitment to change for the better. We, as followers of Christ, must strive to live within the confines of his loving boundaries and celebrate the good gifts he’s given us — even if that means we have to wait until our wedding day.

Thanks for this explanation
Everything you said is consistent with what Islam recognizes. This is evidence of the unity of purpose of God'slaws

Yes it is, the simple answer.

Sex, with or without marriage, isn't a sin! But yes, forced sex with or without marriage, sexual harassment of any form are certainly a cognizable sin.