Cynthia looks into your eyes and grins, some levity entering her eyes again. "I'm pretty proud of you in particular. For you I made it so that you could not die. Any damage your body takes will be healed in a matter of hours, restoring you exactly the way you were. I removed a piece of your brain yesterday to see how that would heal, and while it did grow back you apparently lost the memories stored in that section of your mind."
"What?! That's impossible! Mom, have you gone crazy or something?" you demanded.
"Still don't believe me huh? That's alright, I'll prove it." your step mom says, reaching into the pocket of her lab coat and pulling out a scalpel, using it to slit your wrist before you can react.
Horrified, you release her clutching at your wound, trying to staunch the flow of blood before you bleed out. This turns out to be unnecessary however, as almost as soon as the wound is made you begin to feel a light tingling sensation as it begins to close itself, and after a couple minutes, the only sign that it had ever been there is the large amount of blood still staining your arm.
Realizing this, you pull your hand away, your step mom using a damp cloth to wipe away the blood, revealing fresh pink skin where the was just moments ago.
"Shit, you weren't kidding!" you breathed, still not quite able to believe that this is really happening.
"Nope, like I said, you're a clone, the most perfect one I've made so far. If it wasn't for the memory loss that occurs whenever your brain is damaged, you'd be pretty much perfect!" your step mother said.
"So I can't be hurt at all then?" you asked.
"Oh, you can be hurt alright, it just doesn't stick. So far, you've been burned, cut, bludgeoned, poisoned, stabbed, shot, blown up, dismembered, skinned alive, and even decapitated, and you've always bounced back in the end." Cynthia replied.
Seeing your horrified expression at her casual mention of all the horrible experiments she's subjected you to so far, she adds thoughtfully "Actually, a lot of those things were pretty gruesome, so maybe it's for the best that you don't remember them. You might be scared for life otherwise."
"Ya think?!" you responded. "Uh, you're not going to force me to go through anything else like that are you?" you asked nervously.
"No, at least, not right now, I've already conducted all the tests I need to for the moment." Cynthia answered, causing you to breath a sigh of relief.
"So, do you___________________________?" your step mom asked.