Sigmund caressed the birthmark found on Ivory's left thighs. He moved his body in between her thighs and lifted her knee, letting it rest on his right shoulder. She trembled with his touch and felt very sensitive when his lips brushed over her skin. He parted his lips, his fangs showing, and bit her birthmark.
"Aaaaaaauuughhh!" she screamed in pain as her blood was sucked wildly by her Vampire Servant. Tears started streaming on her face, but she knew she had to overcome the Contract Ritual or else, they're all going to be burned alive.
Sigmund, who was continuously sucking Ivory's freshly unlocked mana, noticed that it was slowly becoming sweeter and sweeter as he tasted more of her blood. It was surprisingly addicting, especially from someone weak like her.