There were a few rituals that did not require sex; however, they included a lot of blood. For example, Uno Animo Et Corde. From the diagrams, it appeared that they would both need to produce cuts on their arms and legs every six inches or so. Blood from each opening was to be added to one cup that they would drink from. Another ritual, Sanguis Terebrare, involved making a direct incision over the heart. The heart would need to be pierced until it stopped beating and the magic brought it back.