As the two headed into Wolf's bedroom, they kissed and caressed each other, pausing only to hold each other tightly. Mark loved pressing his head against Dr. Wolf's chest, hearing his heart beating loudly into his ear. He felt protected and wanted as he felt Dr. Wolf's hard cock pressing up against his belly. The two stripped down, tearing off their clothes and giving in to their lusty desires. Dr. Wolf wanted to show the boy love and affection, starting with Mark's tiny perfect butt. As his hands moved to Mark's backside, teasing his hole and massaging his cheeks, Mark took his tall host's massive cock into his mouth. The boy's tongue worked each impressive inch, taking it back into his throat until his lips grazed Dr. Wolf's pubic hair. Mark could feel the giant top's balls swing beneath his chin, filled with the doctor's powerful seed. He wanted to feel it in him, filling him and making him warm all over. Dr. Wolf could sense that desire in the way Mark swallowed him down, making him even harder in the small boy's mouth...