Are there alot of M/M content? And is the M/M content something you can pursue and it's not some kind of "rape" thing here?
To elaborate on some of the M/M content in the game thus far; Rowan can sleep with Andras (a dominant demon who's a huge prick and enjoys looking down on Rowan), Greyhide (a Minotaur who's a real sweety despite his size; polite, kind, and gentle), Skordred (a dark dwarf who... I guess I'd call him tsundere, though that's still pretty far off of the relationship...), and a drow man who's name I've totally forgotten (a submissive little boytoy).
None of it is forceful rape, but Andras is fond of coercing Rowan by threatening consequences to others if Rowan doesn't give him a reason not to, the first encounter with Greyhide was under the influence of Jezera spiking their drinks, and Jezera manipulated the relationship between Rowan and the Drow by scaring him a bit so that Rowan would protect him. Pretty mild stuff by the standards of the genre, all in all.
Can I prevent my character from being raped in the ass? I'm not homo
And, for tastes like yours, pretty much everything in the game is avoidable, M/M encounters included.
Guys, I've been watching the game a whole lotta times now appearing the updates. Can anyone tell me that the version having many content? Like, I'm very tempted to download this for the longest time but since it ain't finished, I don't know if I should...
Yes, the game is at a point where you can spend an entertaining afternoon with it. There's enough in it that I generally wait a few months between updates to play again, actually.
Is the rape/ntr avoidable?
Yes, you always have the option of declining a path that would lead to NTR content. You can also turn it off entirely, but that also turns off the Alexia/Jezera content, as well as a couple of other minor things that you might enjoy. Personally, I'd recommend just having Alexia decline to have anything to do with Andras, instead.