Yusuke smiled, beginning to massage Touya's shoulders, which he knew would have been tensed from leaning over the notepad so long. He gently kissed Touya's neck, lightly nibbling the soft skin. Continuing to rub Touya's shoulders, Yusuke commented, "Well, it's not your ass, but it'll have to do for now. Besides, that's what I was doing all last night, haven't you had enough of that for a little while, you animal?"
Touya let his eyes fall shut and took on a peaceful, contented expression. "I suppose it'll satisfy me for a while," he observed placidly. Yusuke chuckled, giving Touya another brush of a kiss.
He then bit down on the place where Touya's neck met his shoulder, slowly biting harder and harder. Touya whimpered softly as the skin broke, and in an instinct Yusuke did not yet know he possessed; Yusuke pushed some of his Ki into Touya. He pulled away slowly, baffled. "What did I just do?" he muttered, and Touya looked stunned.
Touya turned to face him; "You… you marked me… When demons mark each other, they bite one another and exchange youki. Then, the marked demons are bonded eternally, mates for life. They are constantly aware of one another; their well-being, emotions… I was not… aware… that ningens also carried on this practice."
Yusuke looked stunned, slowly turning Touya's head back to lick up the slight amount of blood that came from the wound. The blood gone, he pulled away to look at Touya again. "That's because they don't… So why did I? How did I know?" he asked himself.
Touya murmured in return, "There's always been more to you than meets the eye Urameshi Yusuke." He turned completely around, straddling Yusuke in a manner. ((Right now, it prolly looks like Touya is gonna give Yusuke a lap dance haha. It would be funny for Kuwabaka or Hiei to walk in there now.)) Touya leaned over and bit Yusuke's neck in turn, pushing his youki into the open wound. He licked up the blood slowly, savoring it, as all demons do ((savor it)), regardless of who or what the blood comes from.
Touya looked Yusuke shyly in the eyes. "There. Now we're both marked. You can never leave me, Yusuke. I know you wouldn't. And I can never leave you. Who else would be as good for me?" Touya whispered.
Yusuke saw clearly that this was important to Touya, and he could feel in himself strong emotions rising. Like falling in love all over again, and Yusuke had a feeling even if Touya hadn't explained, he would still know the significance of what he'd done. "Never leave. I never will. Not even in death." He replied just as softly, and he sealed his words with a kiss that was soft and slow and heated.