What sexual practices or fetishes were relatively common in the past, but have since declined in commonness?

by YallMofosNeedCheesus
Georgy_K_Zhukov

Sorry, we don't allow throughout history questions. These tend to produce threads which are collections of trivia, not the in-depth discussions about a particular topic we're looking for. If you have a specific question about a historical event or period or person, please feel free to re-compose your question and submit it again. Alternatively, questions of this type can be directed to more appropriate subreddits, such as /r/history or /r/askhistory.

I woudl add though that we do have some really great experts on this, such as /u/vertexoflife, so narrowing down to a more specific period can net you some good answers.