What makes people to produce a sound when doing sex?

Question: What makes people to produce a sound when doing sex?
- Keywords:
  people,
  sex
Asked by 587bmay27 to Peter, Jonathan, Grace, Doris on 4 Jun 2019.
- Grace Kago answered on 4 Jun 2019:
  
  Both men and women can produce sounds in order to communicate with their partners.
- Peter Macharia answered on 4 Jun 2019:
  
  @587bmay27
  
  In addition, some study done in the 1980s suggested that its a physiological response to an epiphenomenon occurring when the body needs more oxygen. Same way like tennis players grunt when kicking the tennis ball