It probably has to do with the miracle of the nocturnal emission. If that can happen by itself, presumably so can the next part

Assuming this is a serious question, the answer is no - the church since its beginning taught celibacy for those to choose it based on the teachings of Jesus and the apostles. For example: 1 Corinthians 7:32-35 "I want you to be free from anxieties. The unmarried man is anxious about the affairs of the Lord, how to please the Lord; but the married man is anxious about worldly affairs, how to please his wife, and his interests are divided. And the unmarried woman or girl is anxious about the affairs of the Lord, how to be holy in body and spirit; but the married woman is anxious about worldly affairs, how to please her husband. I say this for your own benefit, not to lay any restraint upon you, but to promote good order and to secure your undivided devotion to the Lord."

Immaculate Conception-def. the doctrine that Mary was created free from all sin I'm confused...what does the Immaculate Conception have to do with celibacy? Also, the clergy were required to be celibate long before the doctrine of the Immaculate Conception which was defined on Dec. 8 1854.

No. Priests, religious brothers and religious sisters (nuns) as part of their vocation choose not to marry following: + The practice recommended in the Bible + The example of Jesus Christ, John the Baptist, and the Apostle Paul. +++ Scripture +++ In Matthew 19:12, Jesus says, "Some are incapable of marriage because they were born so; some, because they were made so by others; some, because they have renounced marriage for the sake of the kingdom of heaven. Whoever can accept this ought to accept it." In Matthew 19:29, Jesus says, "And everyone who has given up houses or brothers or sisters or father or mother or children or lands for the sake of my name will receive a hundred times more, and will inherit eternal life." Matthew 22:30 - Jesus explains, "At the resurrection they neither marry nor are given in marriage but are like the angels in heaven." In 1 Corinthians 7:1, Paul writes, "It is a good thing for a man not to touch a woman." Then in 1 Corinthians 7:7, Paul says, "Indeed, I wish everyone to be as I am." In 1 Corinthians 7:27, Paul writes, "Are you free of a wife? Then do not look for a wife." In 1 Corinthians 7:32-33, Paul teaches, "I should like you to be free of anxieties. An unmarried man is anxious about the things of the Lord, how he may please the Lord. But a married man is anxious about the things of the world, how he may please his wife." And in verse 38, "So then, the one who marries his virgin does well; the one who does not marry her will do better." Paul recommends celibacy for full time ministers in the Church so that they are able to focus entirely upon God and building up His kingdom. He “who refrains from marriage will do better.” See also 1 Timothy 5:9-12, 2 Timothy 2:3-4, Revevation 14:4, Isaiah 56:3-7, and Jeremiah 16:1-4. +++ Scriptural Examples +++ Biblical role models of a celibate clergy came from John the Baptist, Jesus, and the Apostle Paul. John the Baptist and Jesus are both believed to have been celibate for their entire lives. Some scholars believe that the example of the Essenes influenced either or both Jesus and John the Baptist in their celibacy. WWJD? What would Jesus do? Jesus did not marry. The Apostle Paul is explicit about his celibacy (see 1 Cor. 7). There is also evidence in the gospel of Matthew for the practice of celibacy among at least some early Christians, in the famous passage about becoming “eunuchs for the sake of the kingdom of heaven” (Matt. 19:12). The concept took many twists and turns over the years and will probably take a few more before Christ returns in glory. A priest is "married" to the Church. Some people think that a priest who takes his duties seriously cannot take proper care of a wife and family. With love in Christ.

Not at all, the church introduce celebacy in order that the Priest may better serve Christ in His people. Biblical evidence for the discipline of celibacy can be found in both the Old and the New Testaments. In the Old, Jeremiah was forbidden by God to take a wife in order to enable him to fulfill his ministry better. "The word of the Lord came to me: 'You shall not take a wife, nor shall you have sons or daughters in this place'" (Jer. 16:1-2). Also in the Old Testament, God asked even married couples to practice celibacy on certain occasions. For example, Moses asked the Israelites to abstain from marital intimacy while he ascended Mount Sinai (Ex. 20:15), and Jewish tradition attests that he remained celibate for life following the command of Exodus 9:15 and Deuteronomy 5:28. The Lord also asked that the priests refrain from sexual relations with their wives during their time of service in the temple. In yet another example, the priests ordered King David and his people to abstain from marital relations on the occasion of eating the holy bread (1 Sam. 21:4). In all these instances, there is a theme of abstaining from marital relations due to the presence of something very holy. It is not that the marital act is sinful, but that when one is in such proximity to God, it is right to offer him an undivided mind, heart, and body. If it was fitting under the Old Covenant to serve the temple, to approach God, and receive the holy bread with a consecrated body, it is no surprise that permanent celibacy is fitting for a Roman Catholic priest, since his priestly service is continual. In the Gospel of Matthew, Jesus states, "Some are incapable of marriage because they were born so; some, because they were made so by others; some because they have renounced marriage for the sake of the kingdom of heaven. Whoever can accept this ought to accept it" (19:12 NAB). This is an invitation from Christ to live as he did, and there can be nothing unacceptable in that. Paul recognized the wisdom in this, and encouraged celibacy in order to free a man to be anxious about the things of the Lord and to serve him undividedly (1 Cor 7:8,32-35). In his words, "To the unmarried and the widows I say that it is well for them to remain single as I do. . . . I want you to be free from anxieties. The unmarried man is anxious about the affairs of the Lord, how to please the Lord; but the married man is anxious about worldly affairs, how to please his wife, and his interests are divided. And the unmarried woman or girl is anxious about the affairs of the Lord, how to be holy in body and spirit; but the married woman is anxious about worldly affairs, how to please her husband. I say this for your own benefit, not to lay any restraint upon you, but to promote good order and to secure your undivided devotion to the Lord. . . . he who marries his betrothed does well; and he who refrains from marriage will do better" (1 Cor. 7:8, 32-35, 38).

Due to the widespread illiteracy of the scriptures, especially that of the Gentile believers who were totally ignorant of the Torah, whatever the Catholic priests said were considered as God’s Law and divine truths. One area of total distortion was that of marital relationship. Surprising to almost all of us, it was common for Catholic priests to have multiple wives and mistresses. In 726AD, it was acceptable for a man with a sick wife to take a second wife so long as he looked after the first one. With concerns for protecting Church property from inheritance however, offspring could not inherit church property and it was later declared that all sons of priests were illegitimate. In 1022, Pope Benedict VIII banned marriages for priests (monogamous or polygamous). Finally in 1139, Pope Innocent II voided all marriages of priests and all new priests had to divorce their wives. All these were done to possess and protect money and church property. Making polygamy a sin and marriage unacceptable for a priest was a slow and purposeful process. http://www.patriarchywebsite.com/monogamy/mono-history.htm