To add to that, we've already seen many of the cut same-sex romantic dialogue for Ashley, Kaidan, Tali, and Thane, and they would have played much the same as a heterosexual romance would have. Shepard doesn't all of a sudden turn into a stereotypical gay just because he was romancing the same gender.
And along those lines, Zevran's romance played out the exact6 same for female players as it did for male players. Zevran is Zevran, he isn't the way that he is because he is also attracted to males. It's illogical and unfair to assume that a person is going to
have to act a certain way, romantically or otherwise, because of their sexual determination. A romance between Shepard and Tali plays out very, very differently than a romance between Shepard and Jack, because they are two very different people.
Wittand25 wrote...
The only way to keep Kaidan and Wrex alive as MShep is to play through both games. A s/s romance with them would require anyone who wants to experience the content to by the other two games (if he/she does not own them) and then invest dozens of hours in a play-through just to be able to even start the romance, and that is expecting an unreasonable amount of effort from the players just to see the content.
Ehh, I know I wouldn't mind.

The only way for people to see romantic content with Ashley, Kaidan, and Liara in the third game is for them to play through both games (including the DLC for Liara) in the first place. So is it an "unreasonable amount of effort" for anyone to go through if they want to romance those characters, one of whom is the only lesbian romance so far? Not necessarily. From a certain perspective, it might even be viewed as rewarding the long-term player for their dedication, comparable to...I dunno, a special armor that you can only get if you played through all the games. Except it's, y'know, love scenes. I can understand if people would just rather a new character for ME3, though, since it skirts the need to have to play the games over again.