...to use your mouth

"My mouth?!" Sister Mary exclaims.

"Yes." I say, my monstrous cock throbbing at the possibility of living out one of Stephen's suggestions.

"But why? I can understand using my breasts as they offer a softer massage than my hand but my mouth?"

"Well I was right about using your tits so can't we just try it?"

"I suppose we..." She says before pausing and looking at me in surprise. "Wait...did you say tits?" Again that hot lick of dark pleasure runs through me as she uses the word.

"Yeah, I don't know why but it seems the best name for your chest."

"I see..." She says looking slightly concerned. My cock gives another large throb, impatient for Sister Mary to begin.

"Please, can we start, the pain is starting coming back." The concerned look on Sister Mary's face disappears to be immediately replaced with one of worry and readiness.

"Oh of course, I'm so sorry for my selfishness." She says kneeling down between my legs, my gargantuan member in front of her face.

"Wow, it's a lot bigger this close up. I'm not really sure how to begin."

"Just put the tip between your lips." She takes a small, steadying breath before placing her mouth next to my cock head. Her warm breath tickles my dick, vein pulsating along its length, awaiting her next move.

"*Okay* *I can do this* *For his sake*" I hear her saying under her breath. Slowly she opens her lips and places them around my sensitive tip. She then stops and looks up at me, as if unsure what to do next.

"Just start moving back and forward, like you did with your hand and tits." She blinks in affirmation and follows my instructions, moving her lips over my head. As she does her saliva begins coating the tip, easing her movement as it becomes gradually slicker.

"Mmm, that's it." I say, enjoying the feel of her mouth rubbing around my cock. She continues this for a few seconds, the room silent except for the wet, slurpy sounds and my own few small grunts of pleasure. As nice as this is I feel myself growing impatient with the small amount of my dick in her mouth. I have the urge to start forcing it deeper between her lips but will she go along with it?