A little while later, after bathroom breaks. I am laying on my tummy, my still topless sister is smiling brightly, chatting with me about our shared taboo fetish.
"Did you ever imagine something like this would happen, Roger? My sister's voice is soft and sweet, her hand gently running up and down my back.
I turn to her as I reply, "I had lots of fantasies sis, and some dreams, but no, I mean, I had no idea you were into it."
My sis beams when she notices my cock is still fully hard. "You didn't know your little sis is a perv?"
"No, or that my little sister is the world's best cock tease," I reply.
Kate smiles, before saying, "I mean we are so lucky, You love to edge, and your little sister loves to tease cock."
"God I have been needing to tease a nice cock." Kate thinks out loud
"I couldn't tell sis," I reply sarcastically, through my moans.
Kate just smiles as I moan, smiling back at her. She places her soft hand on my thigh, right beside my hard cock.
Kate has a look of admiration as she takes in my little dick.
"That is one of my favorite things about small cocks, big brother."
"They get hard so easy and so fast, I guess there is not that much there to fill up with blood." Kate giggles as she finishes.
Kate, continues softly, a moment later. "My ex hated me teasing him about his little, or I should say, tiny dick, he has about 4 inches big bro," Kate explains.
"I mean you are actually pretty average, and nice and thick."
"I hope you can learn to be a good boy, cause I really want to suck your nice little cock bro."
"I hope I can learn too sis," I reply as she grins.
"I will suck on your little cock for hours big brother, edging you over and over," her fingers are circling my shaft, not quite touching me.
"After you learn to be a good boy for me." Kate looks me in the eyes, smiling as she finishes her sentence.I moan as a wave of pleasure shoots through my cock.
Kate's smile becomes even bigger as I respond.
"I would love to be a good boy for my gorgeous sister. I kinda like the whole small cock thing, as long as you don't make it too humiliating, okay?"
Kate kisses me softly, "No problem big brother, no problem. "Well looks like you are ready big bro."
Kate's eyes lock on my hard cock as she speaks. "Why don't you stand up big brother"?
I stand as Kate turns, so she is sitting forward, her legs together in front of her. Her eyes on mine she says, "Are you sure, Roger?"
"Yeah, yeah, I am sis," I nod as I reply, my eyes imploring her.
Kate just smiles softly before saying. "I am sorry about this part, big bro but, it has to happen, I need you to get over my knee."
"What?" I reply nervously, my head down, as my cheeks redden.
Kate smiles, "Cmon, big bro, you know what I mean, just be a good boy."
I sigh, nodding, and lay across my sister's lap. Never in my wildest dreams would I have expected the spanking I was about to get.
Kate rubs my ass lightly, making small circles. "Are you going to be a good boy for your sister?" A hard smack follows her question.
"Yes sis," I reply, three more hard spanks follow. causing me to cry out softly.
"I said, are you going to be a good boy for your sister?" Another five hard smacks follow her repeated question.
I reply through my whimpers, "Yes I am going to be a good boy for my little sister."
Smack her hand comes down on my already reddening ass, as I hear, "Good boy, just lay quietly now."
My sister spanks me again and again, counting them off with every hard spank, all the way to twenty five.
I am moaning in pain, whimpering every time I feel the sting, as her hand punishes my ass. Kate pauses for a moment, just lightly, rubbing my sore ass.
"Who owns your little cock Roger?" This time her question is followed by three hard spanks.
"My little sister, Kate, owns my little cock," I reply half sobbing now. Three more spanks reward my reply.
"Do you remember what I was wearing, the first time you got hard for your sister, Roger?" Smack, a hard spank follows the question.
"Yes sis, you were in a little white bikini, the first time I got hard for you." I reply softly, the pain, obvious in my voice. Three, even harder spanks follow.
"Do you remember the first time you jerked off for me?" she continues.
"Yes sis, I remember the first time I jerked off for my sister," I reply. Five more hard spanks follow my answer.
"Good boy, we will talk about that later." Kate is smiling brightly as she rubs my sore ass.
Kate spanks me again a series of seven hard smacks, I am whimpering, flinching in anticipation.
"Stay still, be a good boy." Kate's instructions are followed by another twenty five, counted, hard spanks.
I am sobbing softly, my eyes welling up with tears, wondering if this will ever end, and if I can take it. Consoling myself, silently, knowing it will be worth it. Kate spanks me ten more times as I lose the fight to the tears.
"Are you crying big brother?" Kate's question breaks the dam, tears begin streaming down my face, choking off my reply. Kate spanks me ten more times as I sob.
"Aww, it's okay big brother, just cry quietly and take your spanking like a good boy, most of them won't be this bad."
Kate spanks me twenty five more times, again counting softly. Her spanks become a little softer, towards the end, as I cover her legs in my tears.
"Good boy," she coos, lovingly as I sob. Kate reaches under me, giggling as she grasps my hard cock. "Still hard for your sis though, good boy," Kate gives me one last hard spank.
"Okay big bro, I think you are well on your way to being broken now, I am sorry but it did have to happen."
Kate continues her explanation. "I need you to realize, I am in charge, Your Little Sister," she emphasizes her last few words. "It turns me on to see what you are willing to go through, just to see me naked, and get teased." Kate smiles as she concludes.
Kate pulls me to her breast, allowing me to suckle as I sob quietly. "Good boy," she says soothingly as I calm.
"Do you want to continue?" Kate asks a minute later. Pulling me gently from her breast.
I nod, wiping my tears from my eyes. "Yes please sis, that really hurt, but I loved it."
Kate laughs loudly. Looking at my hardon she says, "Yeah I can see that." Kate giggles softly, before continuing. "You took longer to cry, than most of the boys I have spanked big bro."
I shake my head softly at her grin, until we both laugh.
Kate looks at her phone. "It's still early," she says happily.
"Why don't you go have a shower, I will run over to my ex's, and grab some things I need, Okay?"
I nod in reply.
"Good boy," Kate purrs, as my little cock points the way to the shower.
An hour or so later, I am again laying on my tummy, now on my bed. My sister is gently rubbing lotion into my sore, still red ass.
Kate is in her robe again. We are laughing, as she explains what happened at her ex's. After pleading with her to stay, he demanded to know what she was taking.
"His face, when I showed him what was in my bag, right in front of his friends."
"Lingerie, 3 bottles of lube, and sex toys."
"Oh My God big bro, you have no idea."
Kate laughs before continuing. "I even asked if he wanted me to leave his favorite butt plug." Kate squeals in delight, snorting as she laughs.
"I hung my titties in his friends faces, while offering them a kiss goodbye." Kate giggles as she continues, "they were both staring at my tits big bro."
"I gave both of his friends a nice little kiss, and walked out."
"While he stood there with his mouth hanging open." Kate chuckles again as I laugh.
A few minutes later, she says. "Okay big bro I want to hear about the first time I made you hard, and the first time you stroked your cute little cock to your sister."
"Hm that will be easy sis it was the same time," I chuckle, before continuing. "It was the summer after you turned 18 Kate. Remember you bought that little white bikini, that Mom couldn't know about?"
Kate smiles, softly, "I remember, you mean this one?" Kate opens her robe revealing the bikini in question.
"Yeah that one," I moan as I see the fabric hugging her perfect titties, her nice cleavage spilling out.
"See big bro, good boys get rewards, your sis always pays attention."
"Thanks sis," I reply. I smile, remembering her earlier question, as my eyes return to her magnificent boobs.
"Good boy," Kate encourages me as I stare. "I am kinda an attention whore, big bro if you couldn't tell." Kate giggles as I reply.
"I can tell sis," I turn, exposing my hard cock as proof of my statement. Kate's giggles let me know she approves.
A minute later, as our laughter subsides. Kate says, "Okay big bro tell me." She gently pushes me back down, returning her hands to my ass.
"So that summer, a lot of my friends noticed you, Kate."
"I was hearing every day about how hot you were, how nice your ass was, and how perky your boobs were."
I pause a moment, before asking, "Do you remember soy boy?"
Kate nods smiling, as I continue.
"Well he and I were talking, he understood because of Chloe."
Kate nods as I mention my friend's beautiful sister.
"He explained how I was missing out."
"How a hot little sis could be a never ending supply of spank bank material."
"I wasn't buying it, but it so happened, you and Chloe were laying out."
"Soy boy, convinced me to come to the window and check you out."
"I felt weird at first, but he kept reassuring me, telling me to think of you as a woman and not my sister."
"I started to realize you were hot Kate, your legs looked so good, and well there is no denying you have a great ass sis."
"Why thank you," Kate responds with a giggle.