You’ll look online to see how much a locking eternity collar costs.

You pull on your boxers, sit at your computer, and look up eternity collars. As you click through to different web stores, you tell her, “Abs, so far, I’m not seeing anything I can afford. Until I have some money, maybe we can get you something less expensive, you know, like a dog collar,” you tell her, as you keep clicking.

“Anything you put around my neck would be perfect, Master,” your sister smiles at you, still lying naked in your bed.

You stop looking at collars, and open one of the Master/**** blogs that Abbie sent you a link for earlier. She’s so serious about being your ****, you think you should learn something about being a proper master for her.

After reading for a little while, you notice the time. “We should get dressed before Mom gets home,” you tell your sister. “If I’m going to be your Master, it’s my responsibility to keep us out of trouble.”

Abbie slips out of your bed, steps over to you, and bends over to hug you from behind and kiss the side of your neck. “I’m going to do something to make enough money that we can move out, Master,” she says, nuzzling against your neck and your ear.

You smile at that thought. You turn your head to give her a kiss. “Having our own place would be great,” you tell her. “I should probably look for a part-time job, too. But right now, get dressed. If Mom came home and found us naked together, I’m pretty sure one of us at least would get kicked out of the house and have nowhere to live.”

“I know, I just love being naked around you so much,” she kisses your cheek, then picks up her clothes and starts getting dressed.

You put your clothes back on, too. “I agree, you being naked around me is the best,” you grin wide. “We’ll make sure it happens a lot.” You pat her ass to send her out of your room. “Let me get some homework done,” you tell her. “I can’t concentrate on that when you’re around.”

Abbie beams happily at the compliment and shakes her ass at you as she heads to her own room.

You turn back to your computer and get school assignments finished quickly. When your mom gets home, you and Abbie help make dinner. After you eat and help clean up, you skip watching TV, saying you have more homework. You spend the evening online, reading up on Master/**** relationships and looking for summer jobs. Abbie is a perfect ****, and you realize you’re going to have to work hard to be a worthy master.

You wake up the next morning to the slight movement of your mattress as your sister slips under your covers. It’s followed quickly by the incredible sensation of your sister’s mouth suckling gently on the head of your cock. You had gone to bed naked the night before, so there would be no underwear to get in the way.

You hand moves to the back of her head as it bobs slowly up and down, sucking you deep into her mouth then slowly dragging her lips back, almost to the tip of your cock. You comb your fingers through her soft, glossy hair and moan quietly. “Mmmmm… morning Sis. Good girl.”

You hear a little squeal of happiness at your praise and the wet suction on your cock intensifies. A glance at your clock reassures you that you have a few minutes to enjoy Abbie’s wonderful mouth, before you have to get up and get ready for school.

She pulls off your shaft, and drags her tongue slowly along its underside. “Oh god,” she groans. “Your cock is so perfect.” You pull the covers back to see her. She presses her face against your cock and inhales deeply through her nose. She lowers her head, flattens her tongue, and laps at your balls over and over, wetting them thoroughly. Then she traces the tip of her tongue back up your shaft, to tease the tip and pee hole. She kisses the tip passionately and murmurs against it. “Worshiping it is the best part of my day, Master.”

At this point, you are about to lose control. You tug her forward, pressing the head back into her mouth. “Cumming soon,” you grunt.

This starts Abbie bobbing faster and sucking more hungrily. Your fingers clench in her hair and your hips arch up off the mattress. Your cock erupts and pumps your load into the back of your sister’s mouth, which she gulps down eagerly. She keeps suckling and milking your shaft with her hand, and doesn’t stop and lift her head away from your cock head until she’s satisfied there isn’t a drop left to be had.

Your body relaxes, spent. You slowly release your sister’s hair, and you stroke it with your fingertips. “Yeah, this is a high point for me, too,” you chuckle.

Abbie giggles and kisses your thigh. “Thank you, Master. I wish I could do this for you all day.”

You let out a satisfied sigh. “That would be a fantastic way to spend the day, but I have to go to school, and don’t you have a final to take?” you remind her.

“I know,” she pouts. “but it’s my last one, after that, I’ll have more time to spend on you. All summer when Mom’s at work, you can use me like a bitch all day.” She grins wide at you.

“If I get a job, we’ll be able to get a private place sooner, but you make a good argument for unemployment,” he laughed.

“When I have my business degree, I’m going to ask my boss if he wants me to take over bookkeeping for the shop,” Abbie tells you as she nuzzles against your softening cock. “I could see if there’s work for you there, too. We could work together sometimes.” She bit her lip. “Take breaks together, too,” she added archly.