The cuffs rattled against the headboard as she was stretched and pulled taught, her back arching that little bit more. The extra pull meant she couldn't lift her upper body anymore if she wanted to, she was truly trapped, face down, ass up, and stuffed-it was primal and filthy and she was shaking with the ecstasy of it.
"God you're so big...so full." she mumbled, her breath hard and voice raspy, "Fuck me, fill me up, I know you can, I want to feel you cum over and over." She babbled on, not fully aware if the boldness came from the fact she was already teetering on her second orgasm or if it was the situation but if he liked it she wasn't going to hold back. "Mark me up. Inside in out. Won't be able to walk right for a week and everyone will know I'm yours."
She wasn't sure why the next thought came to her, but when she opened her eyes for a moment and saw the little egg, still wet from the lube and the time it'd spent inside her, sitting on the bed next to her, she was speaking before she'd even realized she'd thought it.
"Put...put the egg in my ass." she panted, biting at her lip.