I read one of the 56 merrywyn fanfics; it was well-written, but almost entirely about sex. Of course, I devoured the whole thing. It amused me that both Merry and Éowyn talk as if they’d each had 100 partners and taken a sex education course in Middle-earth. It raised an interesting question: could a human get pregnant by a hobbit, and would the child be healthy? I figured that since they’re different species, conception simply wouldn’t happen. If that’s the case, Merry can make love to her as much as he wants.
I also thought that femdom is great, of course, but I liked it even more when he dominated her, the roles were reversed again, and that made it even more interesting. He’s probably the only one Èowyn would let do that to her, because she knows he respects her and loves her just the way she is.
Merry always struck me as exactly the kind of person who would want to be more dominant in bed.