Shots all around! "Shameless" kicks off Season 4 on Sunday night and the Gallagher gang — and the rest of their band of lovable misfits — will be pushing the envelope once again. (Turkey baster, anyone?)

Things will be different for Emmy Rossum's dependable big sis, Fiona, as we learned over the summer that Jimmy (or Steve, his sometimes alias) essentially walked the plank when he climbed aboard that yacht with Brazilian drug lord Nando. All signs point to the end of Justin Chatwin's run on the show … right?

"He's gone," Rossum told Yahoo TV at the Origins Smarty Plants event benefiting charity: water in New York City.

Wait — disappeared gone or dead gone? we pressed.



"As far as I know, they've told us that they do not intend to focus on [that story]," she clarified. "Like, he's dead and the audience should know he's dead. And, you know, Fiona has no idea he's dead. She just thinks that he's abandoned her like he went off before [with Estefania]."





[Related: Justin Chatwin Departs Shameless: The Story Behind Jimmy's Death]

View photos

So with Jimmy dead gone, what does that mean for Fiona's love life? Regular viewers shouldn't expect a dry spell because, while the Gallaghers don't have a lot, Fi always does have an active sex life — and "Greek" alum Jake McDorman's Mike Pratt will be back this year to fill the void. It seems the office romance will kick into high gear. When the season premiere kicks off, their office romance is in high gear. He actually visits the chaotic (though slightly cleaner, thanks to Joan Cusack's Sheila) Gallagher house and then they go to a Chicago Bears game together.

"She's still working at Universal Cup, so we'll see how her romance is gonna go with that guy," hinted Rossum, whose character will also be romantically linked to Mike's brother Robbie (played by "Newsroom" alum Nick Gehlfuss).

View photos

And that means more nude scenes for the 27-year-old New York City native, who shows a lot of skin on the show. So we asked her about her nudity rules for filming.

[Related: Emmy Rossum’s Secret to Looking Good (Even When Vomiting)]

"We always have a closed set, and I only ever sign the waiver and do the scene if I feel like it's really important to the story," she said. "There have been times when I've said, 'Nope, I don't think that's important to the story. I'm not gonna do it.'"