In The Monroe Trilogy, Monroe talks about having sex on The Other Side in his astral travelling -- almost as having a cup of coffee, for a pickmeup -- it is a merging of the two energies and is extremely powerful. In his last of the books, he tells of his wife's passing and their meeting on Level 27 in The Park a day or two after she has died. When he returns here, he is overwhelmed by the powerful sexual experience that they shared, one that was far more powerful than any they had shared on Earth together. She was then off to do whatever she was to do there. I have read of a similar account elsewhere but cannot remember the name of the book.
However, it would be well worth everyone's time to read Abduction To The 9th Planet (9th level of planet). This is one man's account of having been taken physically to another place, meeting other beings who are just one step this side of the Creator -- hermaphrodites. It is quite a beautiful adventure. I got my copy at http://www.hilarion.com