I highly recommend the Dragon Age
On the first one you can have a gay relationship with an elf in the extension !
Then for the next 2 episodes, it can be from the begining. In #3 you can even move in with your lover.
It's really amazing to play thoses carachters and gay things including sec & love for the first.
I wish I had those when I was a teen.
The next on is Mass Effect
It's much more restrain but it build up thru the serie.
(spoiler : in episode 1 you need to chose 1 member of the team to save so let the girl die lol)