As "Girls" finishes season 3, it appears fans may have a definitive end date for the series as a whole, according to Judd Apatow.

"We've talked about doing six seasons," says the executive producer to the Hollywood Reporter. "I guess that could change. It's not set. I think we're all committed that we'll do six."

Currently, "Girls" is heading into season 4 production, with a premiere date for some time in 2015.

During the interview, Judd Apatow also discussed the nudity topic, which seems to come up very often.

"There have been things on 'Girls' where HBO has said to us, 'If we put this on TV, we literally could lose our license to broadcast," adds Apatow. "Let's just say it's something you see in adult film. Elements of sexual intercourse. The high points of sexual intercourse."

"We've experimented with the limits of what people can handle. We've had a male organ in movies. We found out that 20 seconds of someone naked is probably too much, and people will leave the theater if you have full frontal nudity for an extended period of time. But if you make it five seconds they'll laugh and say it was great. So basically that's the ratio of how much penis people can handle in a movie. Five seconds yes, 20 seconds no. We're always going too far and then deciding where the line is."

Meanwhile, in addition to releasing a new book and working "Girls," creator Lena Dunham is also busy professing her undying love for Jimmy Fallon, despite having a boyfriend.

Reportedly, Dunham's mother always thought Lena Dunham would always end up with Jimmy Fallon.

"She said it like we had a previous relationship," Dunham told Fallon. "Like you were my first boyfriend, but things didn't work out and she always thought we'd get back together. Not like I had 50 magazine covers of you up in my bathroom."