Oh coolies, I play the Sims 2 as well!
I was so looking forward to the Sims 3 only to discover that it got postponed. Now we all have to wait until summer! Waa!
I didn't know about the 'lesbians by default' for female sims but I've heard of hacks that can allow the player to choose their character's sexual preference. Actually, I've not only heard of it, I use that mod! Hehe. But even without add-ons, I think the game's pretty fair when it comes to equality. Heterosexual sims can get married and homosexual sims can have joint unions. So they have different names but still, they get to the same things (straight, gay or bisexual). I even made a gay couple adopt in my game.
And oooh, have you downloaded that mod that can get males pregnant and lesbians to have babies together? (Yeah, yeah, I'm a Sims 2 geek...)