A U.K. woman has filed a lawsuit against a bed manufacturer, after she was left paralyzed during a sex act.

According to the Daily Star, 46-year-old Claire Busby purchased the super king-size double divan from a company called Beds Are Uzzz. She claims the product’s “defective state” resulted in a serious spine injury that was reportedly witnessed by ex-partner John Marshall.

Busby told the court Monday that she was kneeling on the mattress when she decided to change sex positions. She said she “swung her legs” underneath her body in attempt to get on her back; however, when she made the move, the bed allegedly gave out and caused her to hit the floor.

“I didn't see how she landed and at first I laughed, not realizing that she had hurt herself,” Marshall said in court. "[…] When I got up to look over the end of the bed, she was laying on her side with her arm underneath her and I thought she had hurt her arm. She said she could not feel her arms and legs, I thought she was joking and I laughed. She told me again that she had hurt herself and to call an ambulance. This was the worst thing that had ever happened to me in my life and affected me very badly."

Busby claims the manufacturer is responsible for the injuries because the bed was not properly assembled.

Per the Daily Star:

Busby alleges that the two divans which made up the base of the bed were not properly fastened together and two "gliders"—or feet—were missing from the end of the bed, creating a height difference between one end and the other. Her [attorney] Winston Hunter QC said she expected the mattress to support her weight as she lay back on the bed, but it failed to and she continued moving "backwards and downwards.”

Busby is now seeking about $1.3 million in damages. Beds Are Uzzz denies culpability for the injuries.