Breath Play
From BDSM Wiki
How'm I supposed to breathe with no air, no air, no air?
Jay Wiseman on breath play [1] @Shayblondie on breath play [2]
lol oops, not supposed to put links to qualified outside sources. yeah better delete these and write some bullshit about true masters and best practices for breath play. because you know better than an ER nurse i'm sure