Do you have to use a blindfold in BDSM?
No, not at all. And also, a sexual blindfold doesn´t automatically mean BDSM. It could also be combined with easy-on vanilla sex. As always when it comes to good sex, it´s about communication. It needs to be mutual, and it doesn´t have to be more than some easy playful teas or maybe, just use it during a sexual massage.