When I woke up I didn't even know what century it was for a week. Doesn't matter, this is what you've been waiting for." Raising her wrist to her mout... she bit down and then offered me a bloody arm.I didn't even think, just took her arm and bit. Sweet tasting blood filled my mouth and I drank mouthfuls while she shuddered and moaned. Even over the blood I could smell her arousal. Finally, she pulled her arm away and stumbled backwards to lean weakly against a wall. "Oh, wow, you give great. Assoon as she removed the gag I began to voice my protest.Whack! Denise had never struck me before. I was shocked intosilence.?OK sissy, let?s get this straight one more time. From now on youdon?t talk unless I tell you its ok. Do you understand??Whack! Another slap across the face.?I asked you if you understand???Yes.?Whack. Yes who??Yes Mistress.??That?s better. Now take your girl pills without any more fuss andI?ll give you a treat later.?Denise released my left hand. From the look. She gasps. I suck on the hard nugget of her nipple and gently nibble on it with my teeth. I feel her hands reach around and grab my ass and she pulls me more tightly against her. I reach behind her and unhook the bra, letting it fall away so her breasts are naked. I cup them in my hands and push them together so I can suck both nipples. She throws her head back in pleasure.I release her and say, "let's take a shower. We'll be clean and fresh when he gets back." She answers by stepping. I kept coming back to the conversation that she and I had about limits and how I should have drawn a clear line for her. What I hadn’t realized is just how fragile Kara was, and the tightrope she was walking between her life before that first day in chemistry class and last Christmas.Had there been signs that I had missed? I was sure that there were. What lesson could I learn from this? To pay more attention and watch for any signs of discomfort. My mind went to Katy and her discomfort with the.