An Oregon couple has been accused of murdering their 7-week-old son after police suspected that the mother was using her breast milk for online lactation porn instead of feeding her son. The arrest came following a month-long investigation where starvation was determined as the cause of the infant’s death.

On Jan. 22 Amanda Hancock, 22, and Stephen Williams Jr., 27, called an ambulance to report that their 7-week-old infant was unresponsive. The child was declared dead at the scene, and a medical examination by the Douglas County Medical Examiner’s Office revealed that starvation was the cause of death, KPIC reported. Although the parents insisted they fed their son multiple times a day, the couple did admit to not providing adequate care in their decision to not take him to a doctor despite his lack of weight gain. According to Williams, taking his son to the doctor was his girlfriend’s responsibility.

Due to the child’s low body weight and the parents' involvement in the online porn industry, the police suspect that the mother used her breast milk to film pornography rather than feed her son. Hancock would regularly self-lactate or lactate onto something other than a bottle on camera for a lactation porn website.

Unfortunately, this story is not isolated. In China, where adult breastfeeding and the association of lactation with sexual activities has become a luxury, many poor new mothers will limit how much they feed their own baby or stop altogether in order to earn money through these practices, The International Business Times reported. Wet nurses serving adults are paid more than four times the average salary in China, The South China Morning Post reported. Mothers who are deemed “healthy and good looking” could earn even more.

Milk fetishism is defined as being sexually aroused by a woman lactating. In Japan, there’s even an entire bar dedicated to the activity, where men can either order shots of breast milk or drink it straight from the nipple. Not all adult breastfeeding is a sexual perversion, however, as Time reported that many men try to suckle from their wives out of curiosity.

“If you put women who are nursing together with partners who are having sex, then it’s bound to happen,” Felina Rakowski-Gallagher, founder and president of the Upper Breast Side lactation center in New York City, told Time. “And if it’s bound to happen and there are no negative consequences, maybe it’s something that Mother Nature intended.”