Klaus took it and swallowed (and yes, part of him hoped that there were similar drug-like properties to it, but alas). He let Kersen ride his orgasm, and he only pulled back when he knew it was over. He found the lube then and gave Kersen no moment to rest as he penetrated him with two fingers, scissoring him open. "Hope you don't mind, but man, I want to fuck you so much it hurts."