Now put your hands up–and dissent!
In Blueford v. Arkansas, all the female Justices dissented, and all the male joined the majority.
Mark Tushnet comments:
The Court divided 6-3, with Justices Ginsburg, Kagan, and Sotomayor dissenting in an opinion by Justice Sotomayor. I could be wrong, but I think this is the first case in which the Court has divided along gender lines.