No bother at all, love it when people are thinking a little more about the games beyond the immediate.
There will definitely be story and setting development, and some degree of seeing who he is as he interacts with things, but I hadn't planned an elaborate back-story, no. Mezz is a fairly simple character, and that's partially on-purpose, as the player avatar. But in general it's more about where things go, rather than where they came from when it comes to him.
No, but I love that it works out that way. I think it's actually that long ago in the depths of time there was this artist called Muzz I kinda liked, and when I was trying to come up with a name some synapses deep in my memory crossed and mis-fired and my brain spit out "Mezz." No other relation though, it's not actually connected in any way. I just like the sound.
As for non-hypnosis sex, definitely with Scratch eventually (sorry, spoilers, but come on :D). Possibly in one other situation as well, given the way you worded that, but that won't be for a loooong time.
And thanks, I agree. Just imagine the way the little ears bounce when he's takin' it :D.
Also, while we're talking the game and references, there's still one in there no one has caught. One of the graffiti. Too obscure I think, but let me know if you catch it.