Lin Timeline and Summary

We first meet Lin at the beginning of Act 2. She's sitting on a park bench and trying (but failing) to get her daughter Cathy under control. Eventually she tells Cathy to sit quietly and paint a picture of a car crash with lots of blood. Already we can see that Lin is a modern woman and has very little in common with the women we saw in Act 1 of the play.
Lin starts trying to talk to Victoria about life issues and gets frustrated when Victoria won't look up from her book.
Lin finally admits that she's a lesbian. Victoria doesn't seem surprised, although she says Lin shouldn't be thankful for being alone.
Lin asks Victoria out to a movie, and Victoria agrees. She doesn't seem to realize yet, though, that Lin is romantically interested.
Finally, Lin comes out and asks Victoria to have sex. Victoria doesn't say yes, but she doesn't really say no either.
Later on, Lin, Victoria, and Edward go into the park to have a midnight orgy. They invite along anyone who's interested. At one point, though, the ghost of Lin's dead brother shows up and gives a speech about how much he wishes he could have had more sex while he was in the army.
When the orgy is over, Lin, Victoria, and Edward decide to live together.