When a time machine sends Brian and Stewie on two different paths to Vegas, on gets lucky and one does not on Family Guy. "Road to Vegas; No Country for Old Men" is the finale of the show's 11th season.
(Brian and Stewie sitting at table)Brian: So what happened?Stewie: Well, you wanna know what I learned this week? Being a grown-up sucks. Women, Brian...what a royal pain in the ass. It's like, it's like, why can't you just hang out with guys, you know? Just live with someone of your own sex. Just do what you would do with women, but with your buddy, you know? Why don't guys just do that?Brian: They do, it's called being gay.Stewie: Oh, that's what gay is? Oh yeah, I could totally get into that.