My wife has a fantasy that I'm going to fulfill: being fucked by strangers without knowing who they are - by wearing a blindfold, or through a glory hole. She enjoys playing with multiple partners, and we had a few threesomes, so I'm ready for the next step. I started interviewing a few guys that will join us for a blindfold session (1 guy at first, increasing the number as we go along). The same dudes might later join for a glory hole. I want my wife to never know who fucked her, and although I'm planning to take photos, I will crop the guys' face so she will only see cock. Do you think any blindfold will do? I want to make sure as much as possible that she wouldn't be able to see them - only feel their cocks. I've seen the full headed hoods, but I don't want to use those.

We tried a sleeping mask (Bedtime Bliss), but it didn't stay on during the actual fucking.