Dampyr #104 (2008) pages 95-96: Pleasure from the snake (NSFW)

Samael's help comes with a price tag: "Meanwhile, Sonderling's toys are having fun with your human lover. I could ask them to work on him a little, to cripple him forever. What do you say?"

"Stop them! Or I'll hate you forever."

"You know it's not possible for you to truly hate me. Also, understand that Caleb can't save your friends, because he's being called to an appointment he can't miss."

'Will you save them, Samael?'

"I will, I promise."

"The promises of an infernal prince of seducers... What are those worth?"

Nevertheless, Tesla gives herself to Samael: “Ahhh…It’s… it’s fantastic!”

“We are made for each other, beautiful creature of the night. A vampiress must join evil, because it is her destiny.”