How Could Eve Have Sex With A Serpent?
Some object to the idea of Eve having sex with the serpent. How could a woman have sex with a snake?According to Genesis 3:14:

So the LORD God said to the serpent, "Because you have done this, you will be punished. You are singled out from all the domestic and wild animals of the whole earth to be cursed. You will grovel in the dust as long as you live, crawling along on your belly" (NLT).

Notice that God punished the serpent by changing it's form. It wasn't until after this punishment that the serpent became an animal that would grovel in the dust and crawl on its belly. In other words, the serpent did not look like what we think of as a serpent today; that form came after God's punishment. Therefore, whatever the serpent's form was when it appeared to Eve prior to The Fall, it was not in the form of a present-day serpent. Perhaps the reason the serpent was changed into the form of a creature that closely resembles the male sex organ and has been worshiped universally in almost every primative society as a phallic symbol is attributed to the nature of Eve's transgression which, again, was, according to Tennant, sexual intercourse with the serpent or Satan.

How Did The Serpent Appear To Eve?
So if the serpent did not appear to Eve in the form of a snake, what form did it have?Those who dispute that the serpent was the devil are in a small minority. The widespread concensus among among scholars is that the serpent and Satan were one and the same. Although the Eden narrative does not specifically say the serpent was the devil ingognito, other passages do:

This great dragon - the ancient serpent called the Devil, or Satan, the one deceiving the whole world - was thrown down to the earth with all his angels (Revelation 12:9).He seized the dragon - that old serpent, the Devil, Satan - and bound him in chains for a thousand years (Rev 20:2).

So what does the Devil, or Satan, look like?

First, there's no Scriptural support whatsoever that the Devil sports a goatee, carries a pitchfork, and has hoofs, red skin, a pointy-tail, and horns. Second Corinthians 11:14-15 states that Satan masquerades as an angel of light.

The Fall Of Satan
Before man fell, Satan fell. Before Satan the Devil became Satan (which means "adversary"), his name was Lucifer (which means "shining star"). Lucifer was created by God as perfect, but iniquity was found in him. Ezekiel 28:15 says this of Lucifer:

You were perfect in your ways from the day you were created, until iniquity was found in you.

All the angels were created perfect, but with a free will, just like Adam and Eve. Isaiah 14:12-15 describes the fall of Satan:

"How you are fallen from heaven, O shining star [i.e. Lucifer], son of the morning! You have been thrown down to the earth, you who destroyed the nations of the world. For you said to yourself, `I will ascend to heaven and set my throne above God's stars. I will preside on the mountain of the gods far away in the north. I will climb to the highest heavens and be like the Most High.' But instead, you will be brought down to the place of the dead, down to its lowest depths (NLT).

Lucifer tried to kick God off of the throne of the universe, becoming like God; but he failed. He did, however, become the "god of this world," according to 2 Corinthians 4:4. Revelation 20:10 says Satan will finally be eternally punished for his rebellion:

Then the Devil, who betrayed them, was thrown into the lake of fire that burns with sulfur, joining the beast and the false prophet. There they will be tormented day and night forever and ever (NLT).

One third of the angels joined Satan in his rebellion. They were also cast out of Heaven when Lucifer fell (Rev.12:4,9). So Lucifer became Satan, while the fallen angels became demons. Satan then targeted Adam and Eve in the Garden of Eden.

According to Ezekiel 28:17, Lucifer became very egotistic and prideful because he was extremely beautiful/handsome.According to Ezekiel 28:11-14:

The word of the LORD came to me, saying,"Son of man, take up a lamentation for the king of Tyre, and say to him, Thus says the Lord GOD:

"You were the seal of perfection, full of wisdom and perfect in beauty. You were in Eden, the garden of God; every precious stone was your covering: the sardius, topaz, and diamond, beryl, eryl, onyx, and jasper, sapphire, turquoise, and emerald with gold. The workmanship of your timbrels and pipes was prepared for you on the day you were created. You were the anointed cherub who covers; I established you; you were on the holy mountain of God. You walked back and forth in the midst of fiery stones."

Although this is primarily being addressed to the king of Tyrus, it is also talking about Lucifer. It's doubtful that the king of Tyrus was in the Garden of Eden. Furthermore, the word "cherub" is always used in references to angels; never men. Therefore, God seems to be drawing some sort of parallel between the king of Tyrus and Lucifer.

Notice that Lucifer is described as someone who was "full of wisdom." Serpents were worshiped not only as phallic symbols and fertility symbols, but were also highly regarded for their wisdom by ancient primitive cultures. In Genesis 3:6, the woman saw that the tree was "a tree desirable to make one wise."Lucifer was also described as being "perfect in beauty." Lucifer was covered with every precious stone: the sardius, topaz, diamonds, beryls, eryls, onyx, jaspers, sapphires, turquoise, emeralds, and gold. Serpents are also known for their beautiful skin. Perhaps this is saying that Lucifer had skin like that of a serpent, arrayed with all these beautiful colors.

So it seems logical that Satan appeared to Eve as a walking, talking man, perfect in beauty with beautiful skin like that of a serpent. Angels can, and often do, appear as men. In Genesis 19:1 two angels went to Sodom to warn Lot of impending doom. In verse 4-5, the men of Sodom asked Lot, "Where are the men who came to you tonight? Bring them out to us that we may rape them." These angels looked like men and evidently were capable of engaging in sexual relations. Also, Genesis 6:1-2 says:

Now it came to pass, when men began to multiply on the face of the earth, and daughters were born to them, that the "sons of God" saw the daughters of men, that they were beautiful; and they took wives for themselves of all whom they chose.

Although there is great controversy within the church over who these "sons of God" were, many believe they were fallen angels. Therefore, it is not illogical that Eve would have been sexually attracted to Satan. Neither is it illogical that Eve could have had sex with the Devil.

Furthermore, it is also not illogical that Satan would have been sexually attracted to Eve. Although the Bible gives us little description of what Eve looked like, based upon Adam's initial reaction, she must have been one of the most beautiful women to ever live, if not "the" most beautiful woman to ever live. Therefore, it seems illogical to believe Satan was not sexually attracted to Eve.