"You said you would experience some of my memories," he replied. "To explain would be redundant, but I did give you fair warning. If it's caused you any pain, you have my apologies."
He watched her curiously, wondering why a vampire would go out of her way to assist him. While it was true that she owed him as much, he'd expected nothing in return aside from her agreeing not to feed on anyone from the city for the time being. As to whether or not she would honor it remained to be seen.
When she presented him with the cotton, he tilted his head. "The gesture is not unappreciated, but first tell me what the side effects will be," he said simply.
It took him a moment to examine the statement he'd made, but then he sighed, realizing she would likely need clarification. "The vampire I met before had been giving his blood to injured people aboard the boat we were on. As it turned out, those he healed experienced dreams of a sexual nature centering around him. You are not unattractive, but you are also not my mate. So you can understand my reservation. I...have no desire to be unfaithful to her in any way."
Cas half expected to be laughed at, but he was willing to accept that. He needed to be certain.