My nasty mother did this to both my husband and I in front of each other spanking, enemas, and fucking our asses with a strap on. The spanking were intense giving a warm up first by hand the used a razor strap across our bare asses.
this is the way all f/f spankings should be conducted.....after a hard well deserved spanking the spankee should kneel before the spanker and eat her pussy as a sign of submission....so rare....