A dental dam is a rectangular latex sheet that can be used for rimming (annilingus). It can be used to protect against the transmission of sexually transmitted infections. Placed over the anus, it allows for oral-anal stimulation without any exchange of bodily fluids. Dental dams are quite pricey and are not readily available. In the absence of a dental dam, a great alternative is to use non-microwavable cling wrap (available at most grocery shops) or a cut flavoured condom. The cut condom is achieved by cutting alongside the shaft of the condom. This is then opened and placed flat over the anus.