[Ren the Unclean]

quote
"all right, I'll bite. Where do you get the impression that he is more interested in sex than most Ainur."


Just an impression, but based on a couple of things:


1. Melkor's interest in Luthien. When Sauron saw Luthien in Tol Sirion, "he thought to make her captive and hand her over to the power of Morgoth, for his reward would be great." (The text doesn't specify, but I assumed she would be sent to his bed.)

Later, Melkor saw her (and Beren) in Angband. "Then Morgoth looking upon her beauty conceived in his thought an evil lust, and a design more dark than any that had yet come into his heart since he fled from Valinor. Thus he was beguiled by his own malice, for he watched her, leaving her free for awhile, and taking secret pleasure in his thought." (Again, the text never says what his dark thought was, but most likely same as above.)


2. Melkor's attempt to ravish Arien, the maia who piloted ship of the Sun. "In other writings, Morgoth wanted to claim Arien as a wife, and ravished her, upon which she abandoned her body and 'died', leaving the Sun to travel through the skies uncontrollably and burning parts of Arda."


Since Ainur don't reproduce, I tend to think of them as asexual (again, just my impression). So I find it out-of-the-ordinary that there's an an Ainu who seems to have an interest.