In essence it is a homemade dental dam (It's use is detailed in the link below).
From a male condom:
[Start with a non-lubricated condom for best results; flavored condoms are also available. Before unrolling, cut off the condom's tip. Make one cut up the length of the condom. Then, open the condom; you'll have a latex square.]
This answer was found at: www.umass.edu
From a male condom:
[Start with a non-lubricated condom for best results; flavored condoms are also available. Before unrolling, cut off the condom's tip. Make one cut up the length of the condom. Then, open the condom; you'll have a latex square.]
This answer was found at: www.umass.edu