Abu mafi mahimmanci a cikin jima'i biyu shine ci gaban gashin gashi da gashin gashi.
Tabbas, wani nau'i mai rikitarwa na jumla shine "Mafi mahimmanci a cikin jima'i biyu shine ci gaban ƙuƙwalwa da gashin gashi, wanda a wasu lokuta ana kallon su a matsayin halayen jima'i na biyu. "