Robert ZS, a seasoned explorer of carnal desires, discovers a new frontier when he's gifted an intimidatingly large butt plug. He tentatively inserts it, the cold metal giving way to warm, welcoming flesh. He wiggles, feeling it stretch his hole deliciously. His moans intensify as he thrusts his hips, the plug hitting his prostate with each movement. He's never felt so full, so wonderfully invaded.