Full on threesome!

"Alright, let's move on to the next phase of the threesome," Master said with a grin, laying back, and allowing his cock to stand at full mast. He had undressed while watching me finger Rosemary to an orgasm. "Go ahead, Celeste," he added.

"Yes, Master, of course!" I chimed, moving away from Rosemary to straddle Master's waist. Reaching under myself, I gripped his cock, and guided it into my pussy, moaning as I felt him enter my folds. I lowered my hips until he was buried all the way to the root within me.

I placed my hand on Master's chest as I began to work my hips on him, moaning as I did. I gazed at Rosemary, who was watching in interest. "Well, slut?" I grinned teasingly at her. "You gonna join in? Do you need a written invitation?"

She blinked. "Oh, no, I was waiting for permission, actually!" She immediately moved to straddle Master's face, gasping as his tongue immediately came up to lap at her folds as she settled into place. She then looked for a place to put her hands for additional stability, but mine were already on Master's pecs.

"My boobs, silly!" I moaned as I continued to bounce on Master's cock.

She blinked. "What about your... Breasts?" she questioned as she wriggled her hips on Master's face while he gripped her thighs.

"Put your hands there!" I clarified. "And don't say "breasts," speak like the slut you are!"

"Now, now Celeste, no need to pressure Rosemary," Master chuckled, before returning to licking Rosemary. "Her manner of speaking is fine."

"...I'm okay with speaking in a dirty manner during sex with you, Master," Rosemary moaned as she placed her hands on my tits. "...Celeste has wonderful tits," she moaned as the fucking continued.

"Heh, baby steps I guess," I moaned as I leaned forward and kissed Rosemary full on the lips, pressing my boobs into her hands. She moaned into the kiss as she tentatively felt me up.

I kept grinding my hips until I felt Master's cock throb inside me, and screamed out as I came, my voice muffled by Rosemary's lips. She followed suit, and came, Master lapping up some of her fluids, just as I felt Master's seed flood into me, filling my pussy with his essence. "Mmmnh..." I moaned as I broke the kiss with Rosemary.

She grinned back at me weakly. This was truly amazing. I was so happy that Master took my request and ran with it!