You're too excited to read them. You look at BDSM porn instead

You glance at the links but you’re too excited to pay much attention. Soon you’re browsing through porn, looking for BDSM. You find a video of a woman who was bound to a table. The male performer flogs her tits and then fucks her roughly, with his hand around her throat.

You hear a car pulling into the driveway. You stop the video and hide the browser window, in case it’s your mother coming home early, but when the front door opens, you hear Abbie’s voice call, “I’m home.”

You answer, “I’m up in my room, ****.”

You hear Abbie’s footsteps running up the stairs. She drops to her hands and knees as she steps through your bedroom door and crawls to you on all fours. When she gets to your chair, she sits back on her heels. “Hello, Master. How was your day?” she asks in a sultry voice, with a wide smile on her face.

You stroke your sister’s hair. “It was pretty good, but much better now that you’re here,” you tell her. You brush her hair behind her ear and trace your fingertip around the rim of her earlobe. She shivers at the tickle.

“Thank you,” Abbie purrs. Her hands stroke up and down your thighs. “What can I do to make it even better for you?”

You grip her hair and tug her forward, tilting her head back so her face is turned up toward yours. You press your lips to hers hard. You probe your tongue deep into her mouth. She moans as she accepts your rough thrusting tongue, sucking on it hungrily. Her fingers clench on your thighs, then slide up to your crotch. They stroke over the swelling bulge in your jeans.

When you pull back from the kiss, you smirk down at Abbie. “I was just thinking about that question, myself. Now that I own you, how do I want to use you?” you ask in a teasing voice. “Should I hurt you and treat you rough, to make sure you understand your place? Should I just lay back and let you work to service and please me?” You lean closer and whisper huskily, “Should I find out what your boundaries and limits are so I can push them?”

Abbie’s cheeks flush pink and her breath comes in rapid pants as she listens. “Whichever pleases you most, Master,” she says in a quiet, timid voice.

“The first thing I think would please me most is for you to be naked,” you say, grinning. You grip her top and pull it off over her head. Abbie reaches behind her back to unhook her bra. You grab her arms to stop her. “I didn’t tell you to strip. I’ll undress you,” you insist. You reach around her. It takes a moment of fumbling with the hooks before you can undo them. You slide the straps from her shoulders and let the bra drop to the floor. You trace your fingers around the curves of the firm, round flesh that is revealed. Abbie makes a sound between a coo and a moan.

“Stand up,” you order your sister. She rises to her feet. You unbutton her shorts, tug down their zipper, and pull them and her panties down her legs. She steps out of them and kicks them aside, then goes back to her knees. You wonder if you should correct her for kneeling when she hadn’t been told to, but decide that you prefer her to kneel to you as the default. You can always command her to stand when you want her to.

Your hands move back to her pert tits. You caress them, then cup them. You squeeze and knead her warm, soft globes of flesh. You feel her nipples stiffen against your palms. Abbie arches her back and pulls her shoulders back to present her breasts to you. She shivers and you can tell she’s doing her best to keep still under your groping. She writhes and her chest heaves as her breath grows heavier.

You close your fingers and thumbs on her nipples. You pinch lightly and tug gently at first, then harder, stretching them out. Her moans become higher in pitch. As you start to twist, they turn into a breathy cry, “AHhhhh…” Abbie throws her head back but keeps her tits thrust out for you to torment. You give one last hard pinch, then let go.

“I’ve decided what I want to do with you today, ****,” you tell Abbie. You cup her cheek in your hand and look into her eyes. “You have one hole I haven’t used yet. We’re going to change that now.”

“Yes, Master,” Abbie says with a nod and lowered eyes. “I have lube in my room, would you like me to fetch it?”

“Go get it,” you tell her. You lean forward, reaching around to give her a swat on her ass. She starts to get up, but you press down on her shoulders. “Crawl,” you order her.

Abbie smiles and nods. “Yes, Master,” she says softly and leaves the room on all fours. You watch her ass sway as she crawls away.

Once Abbie is out of the room, you strip down to your boxers. You’re starting to feel a little nervous. You’ve seen anal sex in porn but you’re not confident that you’ll know what to do. You’re fairly sure Abbie has some experience with butt-sex. You’re worried that it might undermine your authority and make you seem like less of a master if you ask her to show you what to do.

Abbie crawls back into your room with a small bottle in her teeth, fetching the lube for her master like a dog. When she gets to where you’re standing, she sits back on her heels again and presents the little plastic bottle to you with both hands.

You don’t take the offered bottle. You look down at your sister and say, “You’ve taken dicks up your ass before, haven’t you?” It’s more of a demand for confirmation than a question.

Abbie nods, still holding out the offered lube. “Yes, Master. A few times,” she admits, “but none that I wanted as much as yours.” she adds with a sly grin.

You smile at that answer. “Does it hurt?” you ask. You take the little bottle, so Abbie can put her hands down. Then you comb your fingers back through her hair, clenching them to give a playful little tug.

Abbie’s head follows your pull and she lets out a sigh of contentment. Then she answers, “It can be painful, if it’s rushed or there’s not enough lube. Usually, it’s just kind of,” she searches for a word, “achy, being stretched open there. But it’s a good ache — satisfying, I guess. I know it will be wonderful with you.”

“Take my boxers off,” you order her. She hooks her fingers under the waistband and tugs them down, smiling when she uncovers your hard cock. “Kiss it,” you tell her. “Then lube it up so I can fuck your ass, ****.” You hand the bottle back to her. “You’re going to teach me how.”

“Yes, Master!” Abbie says enthusiastically. She opens the bottle and trickles the lube on the head and shaft of your cock. Then she smears the slick fluid around your straining dick, stroking her hand along it and twisting back and forth, to make sure it was well coated. She dribbles a little more on, and spreads it around, making sure your cock is well-lubricated. “Where do you want me?” she asks when she’s done.

“I think the bed would be most comfortable,” you say. Abbie crawls onto your bed and gets into position on her knees and elbows, ass up in the air. You move onto the bed behind her, you grip her hip in one hand.

Abbie reaches back to offer the bottle to you. “If you work some in with your finger first, it’ll make it easier.”

You take the bottle and squeeze a little of the lube onto your sister’s tight butthole. She shivers slightly at the cool feeling. You press the tip of your finger to her pucker and smear the thick liquid around. Then you press in, just to the first knuckle.

Abbie moans, “Mmmmmmmm… yes, Maaasterrr… like that.”

You push your finger deeper, twisting it back and forth, then work it in and out slowly to spread the lube and ready your sister’s asshole for your hard cock. It feels tight around your finger. You anticipate how much tighter it will feel on your shaft.

Abbie wriggles her hips in response to your probing finger and arches her back to raise her ass up in offering. “Please Master, put your cock in my ass. Use me. Make all my holes yours,” Abbie whines. She starts to rock back against your fingering of her anus.

You don’t need to be asked twice. You slide his finger out and guide the tip of your cock to her winking hole. You push forward, but just prod at it and can’t enter her at first. You grip your shaft tightly for support and lean forward over her, using your weight to push inside. The head of your cock slowly pries Abbie’s sphincter open, bit by bit. She groans from the back of her throat.

Finally, the head pops past her tight ring and lodges inside her. Abbie gasps in a sharp breath. You hold there for a moment, letting her get used to the intrusion, and enjoying the feeling. You grip her hips with both hands and press in, inching more and more of your rock-hard shaft inside her tight hot ass.

Abbie twists the sheets in her fists. “Maaaasterrrrrr… “ she rasps out. “Fuuuuuck… so gooood…” She starts to hump back, grinding her ass onto your shaft with long, slow motions. Her ass envelops your flexing, twitching cock.

You clench hard on Abbie’s hips. Your thumbs dig into the soft skin of her ass cheeks. You start to yank her back onto his dick as you arch your hips forward, taking control of the tempo. Your thrusts are slow, deep, and deliberate. They grow harder as you feel Abbie accepting your lead. Each time you slammed forward with a steady, unhurried pace, her body is jolted. Her ass cheeks jiggle at the impact of your crotch.

Abbie drives back hard onto your cock. Her body tenses, convulses. You can feel her ass clench on your shaft. “Cummmminnnng…” she groans. You’re astonished to find that you aren’t immediately sent over the edge into your orgasm. You’re starting to lose your hair trigger. You feel close though, and know it won’t be much longer.

You tighten your grip on Abbie’s hips and start to rut faster into her ass, humping frantically, until your cock swells, pulses, and pumps your seed deep into your sister’s bowels. You manage to release your grip with one hand to land a sharp slap on her buttock as you cum. That sends Abbie into another orgasm, she shudders and moans. Her sphincter tightens on your cock squeezing the last of your cum from it.

You keep still for a moment or two, breathing heavily to recover. You pull out and collapse onto the bed on your back. Abbie stretches out, half on top of you. Your naked bodies press together, slick with sweat.

Your fingers trail lightly up and down Abbie’s bare back. Then move up, sliding under her sweat-damped hair to grip the back of her neck. “I want to put a collar on you, Abs,” you murmur.

When you tell Abbie you want to collar her, she grins wide and nods enthusiastically. She grabs your face in both her hands and kisses you passionately. Her tongue teases between your lips and dips into your mouth. “Oh god! I love that idea. I can’t wait to wear your collar, Master,” she squeals when she pulls back from the kiss. She bites her lower lip, then asks shyly, “Could it please be an eternity collar that locks in place, and you keep the key so I can never take it off?”