The television drama, in which Asher Keddie plays obstetrician Nina Proudman, received complaints after a "self-love" scene two weeks ago that showed her slipping under the bubbles in a bath after fantasising about her colleagues.
A spokesperson for the TV network told the Herald Sun: "There have been a lot of complaints... objecting to the fantasy scenes. Nina lives a typical lifestyle of a 30-something woman in ,Offspring and at times it can be racy. Expect more of it."
Keddie was nominated for the prestigious Gold Logie and the 'Most Popular Actress' award for her role in the show earlier this year. She later lost out to TV presenter Karl Stefanovic and actress Rebecca Gibney respectively.
Offspring also missed out on the 'Most Popular Drama' award, losing out to Packed to the Rafters.
Last year, Keddie revealed that she loves how "eccentric" Offspring is, saying: "The show pushes the boundaries... It's unpredictable, surprising and I think we're striking a great balance between comedy and drama."
Offspring airs on Mondays at 9pm on Channel Ten.