We’ve got some scientific evidence on how long sex actually lasts, and if you’ve ever wondered whether your sex life is normal, the results are worth reading.

Doctor Brendan Zietsch a psychologist from the University of Queensland decided to conduct a study to find out how long sex really lats by giving 500 couples a stopwatch to time themselves having sex over a four week period (awks!) – and the results are in.

Apparently, “The average time for each couple across all the times they had sex ranged from 33 seconds to 44 minutes,” he wrote. Now that’s a massive difference!