Paul the Apostle infers angelic sexuality in Corinthians:

 

A woman should have a covering over her head for this reason:  because of the angels.[1] 

 

What Paul meant is explicitly confirmed by the comments of Tertullian, who said,

 

Next, we turn to the reasons for why the apostle said that the female ought to be veiled… for if it is on account of the angels, those, to wit, we have read about, who fell from God and from heaven because of their desire for the females.[2] 

 

Tertullian was a high ranking church official in the late 100's and early 200's AD.  Here, he identifies the meaning of Paul's statement.  This all relates back to the fact that the Biblical book of Enoch tells us that evolution happened by means of fallen angels, or aliens, who bred with animals. 

 

Notice that Paul took for granted the fact that angels are sexually attracted to human women, and therefore women should cover themselves during worship, so that they do not arouse the angels when they pray.  Paul mentions this in mere passing, as if everyone knew what it meant, agreed with the interpretation, and did not need any further explanation.  Thus, not only that Paul said it, but also the way he said, attests quite strongly for a very wide knowledge and acceptance of Enoch  and related apocrypha in the early Christian community. 

 

Other voices from the New Testament also quote the book of Enoch as if it were a scriptural authority, including Jesus, Jude, Paul, John, and Peter.  The book of Enoch should be in the Bible.