butt goggles

When a woman and man perform 69 on each other. Preferably the man is on bottom and can't see anything due to the fact of the woman's ass being in his face.

Man 1: Yeah, so me and Debbie got it on last night
Man 2: Sweet dude, you didn't put on the butt goggles did you?
Man 1: Yeah.. for a little while, i couldn't see shit