Bilbo let out a soft moan as Thorin pushed back against him, the sensation around his cock intoxicating. He almost pouted however, when Thorin tried to muffle his moans. He leaned forward to lightly nip at Thorin's ear, whispering seductively. "No one can hear us my king, and I'm sure your nephew wants to know he's doing a good job." The Hobbit smirked slightly and thrust forward hard, hitting that special spot in Thorin directly. Groaning softly in Thorin's ear, Bilbo nipped again, still trying to encourage him to let his moans escape.