Understanding part 3

"Wh-what are you..." I start to mumble as he thrusts into me from behind.

"What does it look like, or should I say feel like." he said drawing out the word feel. He started to thrust into me harder and I let out a small moan. I gripped the sheets as he began to move faster.

"Nngh!" I moaned, but tried to muffle it. The more I moaned it seemed that he moved faster, or maybe that was my imagination.

"Don't try to hide your moans from me you little slut." he growled as he thrusted deeper into me. He gripped my hips and dug his nails into my skin.