focused on grades, so non-examinable subjects are often changed to ones that will raise grades," said Maggie Hu, who works for the Guangzhou-based sex education provider SexualityZone.
The women who attend Ma's classes come from all over China and from various backgrounds. Some are 20-year-old students wanting to prepare for their first sexual encounter. Others are middle-aged divorcees seeking to regain their confidence.
Many Chinese parents only talk about sex to scaremonger and encourage abstinence, Ma said.
"One of my clients said they were told by their mother that sex is like being shot at with a gun," Ma said. "Many people will grow up thinking that sex is a dangerous thing or really shameful."
For Hu the lawyer, who has yet to have a sexual experience at age 30, taking the class has reduced her anxiety about sex and helped her to understand the pleasures.
"When I have sex, I will be more relaxed," she said. "I won't be as afraid."