She could feel him inside her, thrusting in and out of her slick young sex. Her legs were wrapped around his back, and her body reacted to his, to every little twitch and throb and pulse of his cock, to every movement of his hips against hers, or of her torso against her breasts.
She didn't moan or scream as he pounded her. Normally, she was a very loud lover - they'd had complaints from neighbours more than once.
But she found that it was hard to scream with his hand around her throat.
He pushed again, his cock kissing her cervix. One of his hands was balled in a fist next to her head, giving himself support, while his other hand squeezed against her throat.
She panted a little, and pushed her hips back to him. He looked so powerful above her, thrusting deep into her belly, but it was the slight oxygen starvation that she was most conscious of. It heightened everything - every feeling in her body was multiplied a hundredfold.
She could feel the throbbing of her heartbeat in her erect nipples and swollen clit' she could feel the bedsheets, slightly damp with her sweat, against her back; she could feel his warm skin against her legs through the gaps in her fishnet stockings; she could feel his weight on her stomach; she could feel his cock, so warm and so hard and yet so soft, slamming into her body and out again as he used her.
Suddenly, the hand unclenched from around her neck, and she gasped for air. The gasps became squeals as his teeth found her neck.
"You know, if you're oxygen deprived when you cum, it makes the orgasm more intense." he whispered in her ear as he pounded her quickly for a few seconds. She moaned again, as loud as she could, for as long as she could, while she was allowed.
"This is going to be the best orgasm you've ever had."
"Thank you, Master"