When you're getting freaky in the sack, things can get quite intimate and there's nothing worse than someones bad habits wrecking what should have been a good time.
New research has found the worst thing you can do during sex to really put a damper on the mood.
A survey of 1,700 people found farting to be the most off-putting that someone can do during sex.
The survey also found out other interesting sex-related data, like period sex is completely off-limits for 45% of people.
And almost 40% of people said it’s not OK to be unclean before oral sex.
We thought that these were all common knowledge and standard hygiene things, but hey you just never know with some people!