University of Sydney veterinary students have barred all to support a good cause in this year's nude charity calendar.
The Camden students stripped off to raise funds for the Black Dog Institute.
Calendar organiser and vet student Lucy Fuchter said all proceeds raised from the calendar would support mental health services.
"Most people know someone - be it a family member or a friend - who has struggled with mental health issues," she said.
"So it's just a really good cause and great way to help out people who are struggling with mental illness."
The future veterinarians posed with pigs, sheep, ducks, cows, labrador puppies and Clydesdale horses.
The photos were taken at the Camden Sydney University campus and on farms across Macarthur including the Biffin dairy farm in Camden.
"They go to print this week and having seen the finished product I am really proud of what we have done," Ms Fuchter said.
"I am biased but the photos have turned out beautifully.
"We cannot wait for people to see it."
This was the first time Ms Fuchter had posed nude.
"It was a bit nerve-wracking - I had never even thought of posing nude for a calendar before," she said.
"It was a bit awkward in the morning because we did a sunrise shoot but as the day went on we got more comfortable with each other.
"I don't think anyone really knew what to expect but I think it brought us closer as well."
Ms Fuchter encouraged locals to buy the calendar and support the Black Dog Institute.
"The calendar is full of beautiful pictures of cute animals and tastefully covered naked vet students," she said.
"It supports a really good cause too."
To purchase a calendar, visit: nudecalendar.wixsite.com.