Don't tie Sean up, just mount him and drain his balls

You decide to go easy on the boy. He's clearly in your thrall, you don't need to restrain him.

You pin him to the bed with your strong hands and impale your pussy on his rod. He looks at you, body trembling, cock twitching within you, and the pleading in his eyes softens your heart a bit. Instead of pistoning as fast as you can, you restrain yourself and establish a smooth, steady rhythm. You feel him relax.

"Suckle me," you husk, leaning forward. He lifts his head, catches a nipple in his mouth and suckles, gently using his tongue on the tip. You moan and quickly climax. His body shudders as you orgasm. You work yourself to a second climax, and as you're building towards a third, you feel his body tense.

"That's it," you whisper. "Fill me up." You don't give him a choice, as your box clamps tightly around his rod as you climax. You feel his cum spurt within you, and you milk him with your internal muscles until you're certain you've extracted every drop.

You slide off him and lie next to his spent body. He looks dazed. "You were great," you whisper, wrapping an arm around him and pulling his head against your chest. He looks at you and favors you with an exhausted smile.