Minor nitpick: if they haven’t had sex yet (“… doubt we’ll need [the rubbers].”), why is Marnie nervous?

Magaroja said in comment #2578902:

Minor nitpick: if they haven’t had sex yet (“… doubt we’ll need [the rubbers].”), why is Marnie nervous?

I think she wants to do it but doesn't want any chance of her getting pregnant.

Magaroja said in comment #2578902:

Minor nitpick: if they haven’t had sex yet (“… doubt we’ll need [the rubbers].”), why is Marnie nervous?

You've never been nervous before doing something?

blindVigil said in comment #2578944:

You've never been nervous before doing something?

Not if I don’t have to do it.