In Gypsy lore the vampiric spirit known as a mule looks exactly as it did in life, but it does not return in its old body. Rather, it creates an exact duplicate that it uses. The mule, which is only viable between midday and midnight, is not a blood drinker and truly wants little else than to rejoin the community and reunite with its wives. Any children that are conceived and born from this union are called LAMPIJEROVIC, VAMPIJEROVIC, and vampiric; boys are sometimes called VAMPIR and girls vampirera, but in reality, they are all DHAMPIRE. The women are raised to believe that should a vampire come to them seeking intercourse, they should not resist or cry out. If a woman fights back or calls out for help, the community will not help her.

Source: Clébert, The Gypsies, 150; Masters, Natural History of the Vampire, 142; Summers, Vampire Lore and Legend, 271