Robert Pattinson and Kristen Stewart kicked off their domestic press tour for Breaking Dawn Part 2 yesterday with their costar Taylor Lautner. The on-again couple spoke with a variety of outlets, including MTV, about the finale of the Twilight saga. Robert touched on the sex scenes featured in the Nov. 16 release, and had a few jokes about the usually PG series' foray into adulthood. Robert joked about the racy moments, saying, "I haven't seen it yet, so I don't know, but I imagine it's quite like the scene where they're doing pottery in Ghost." Check out this highlight from Rob, Kristen, and Taylor's chat with MTV.