Korean actor's dad on son's sex scenes in movie: You're old enough to take off your clothes
It's been dubbed the Korean version of 50 Shades of Grey, with plenty of steamy love scenes between co-stars Jung Woo Sung and Esom.
But Scarlet Innocence, a thriller released last month, was produced with approval from the lead actors' parents.
Based on the Korean classic folktale Shimcheongjeon, the movie is about an obsessive love between a professor (Jung) and a young girl (Esom).
Jung, 41, recently revealed that his dad had a big say in whether he got to do the dirty on screen.
He told Korean media: "I did not avoid movies with bed scenes until now, but I wanted to appear in one when I felt ready.
"I discussed it with my father. (I asked), 'Daddy, can I take off my clothes?'
"He said, 'Sure. You're old enough to take them off'."
Esom, 24, also admitted to seeking her mother's permission before accepting the role.
Other Korean celebrities who did not run the idea of participating in raunchy scenes by their parents have experienced the cold shoulder.
Actor Lee Dong Wook, who starred in dark melodrama La Dolce Vita (2008), recalled the tense atmosphere at home after his bed scene with Oh Yeon Su was shown on TV.
Lee, 32, told Korean media that the scene was shocking for a television drama.
"When my father watches television, he usually has a lot of questions for me, but he didn't say a word (during the bed scene).
"My mother abruptly called her friend and actually left the house."
Of her sexy on-screen romp in TV series Can We Marry (2012), actress Jung So Min, revealed that her parents simply wouldn't speak to her after they watched it.
Said the 25-year-old: "(Regarding) the frank dialogue, and the bed and kiss scenes - I did feel a little awkward. But as we set up to actually shoot them it became fine.
"However, (what was more awkward) was when I was watching the broadcast at home with my parents.
"I did feel embarrassed. As it went on, they just grew increasingly silent."
"I discussed it with my father. (I asked), 'Daddy, can I take off my clothes?' He said, 'Sure. You're old enough to take them off.'"
- Korean actor Jung Woo Sung, who sought his father's views on filming risqué love scenes in Scarlet Innocence.