When he was done with his pictures, Jake pulled an object out of his pocket and set it down in front of Denise. "Do you know what this is?" Denise looked at the object and then back at Jake but showed no reaction. Jake smiled.

"I'm sure you do, but I'll explain it anyway. This is a vibrator. What's going to happen is I'm going to slide this thing into your vagina and turn it on, and it's going to bring you to orgasm." Jake clicked the vibrator on. "And while it's doing that, you're going to give us blow jobs." Jake smiled and slid the vibrator under her panties and into her vagina. Denise tensed up immediately. Sliding her down the couch a bit, Jake crawled onto the couch and pulled down his pants, revealing his rock hard cock to his sister. Taking off her ball gag he slid it into her mouth and she started sucking him. She made both Jake and Eric cum as she brought herself to a state or orgasm as well. When both Jake and Eric were finished, Jake put the ball gag back in her mouth and left her alone. She sat on the couch, the vibrator reverberating inside her pussy, bringing her to orgasm after orgasm until she finally passed out.

When Denise came to she was still hogtied, laying on her side on the couch, with her brother Eric laying next to her. Eric was stroking her hair and rubbing his hands up and down her midsection, occasionally sliding them under her bra and playing with her breasts. She whimpered at his touch and Eric realized she was awake. He called over to Jake, who was reading the newspaper on the easy chair.

"She's up, Jake," he said.

Jake walked over and looked down at her. Their eyes met and he smiled.

"I've taken the vibrator out," he said. "You certainly had fun with that thing." Denise averted her eyes.

Together, Jake and Eric started to release her hogtie and stand her up straight. She was shaky at first but soon regained her balance and stood there in front of them, bound and gagged.

Jake unhooked her bra and moved it up so her breasts were exposed, then grabbed a handful of each breast and started sucking on them, one at a time. Eric stood there staring as Denise grew red with shame. She did not move though and eventually Jake stepped away and looked at Eric.

"Your turn," he said.

Hesitantly, Eric walked up and started doing the same thing. He got into it as Jake instructed him on what to do. "More rubbing and grabbing," "Start sucking now," and "Twist her nipples," were just a few of the instructions Jake gave Eric. Eric followed them flawlessly and could feel himself starting to get hard. Jake realized this and changed his instructions.

"Okay Eric, now put your arms around her and place your hands on her ass and started rubbing it and grabbing it and all that shit. Slap it, grabbing it really tightly, those kinds of things, and while you're doing that, rub your hard crotch up against her crotch area and just move up and down, up and down." Eric did this for a few moments, whetting his boner and making Denise, once again despite her desire not to, felt an orgasm coming on. And then Jake had Eric stop.

"Tonight, Eric," he said, "you will learn many more things about our sister. But for now, let's let her rest. She has a very busy night tonight."

Both the brothers smiled and hogtied her again on the couch, leaving her alone for a few hours.

When the brothers returned, Denise was still awake. It was dark now, ten at night and they untied her hogtie. Then they freed her ankles and thighs and Jake grabbed her elbow and led her upstairs.

Entering their parents' room, Jake sat her on the bed and tied each ankle to the bedposts. Then he unbound her wrists and laid her flat on her back, tying each wrist to the bedposts as well, so Denise now lay spread eagles, each arm and leg tied to a separate bedpost. Still ball gagged, she looked up at Jake, trying to figure out what he planned on doing to her in this position.

Jake removed her ball gag and spoke to her. "Have you ever had sex Denise?"

Denise closed her eyes and felt tears well up in her eyes as she realized why she was tied like this. She said nothing at first.

"I asked you a question, Denise," Jake said.

"Yes," she responded, barely audible.

"What?" Jake said, even though he had heard.

"Yes," she said, a little louder, but still very softly.

"With who?"

"With dad," she said, nearly whispering again.

Jake smiled. "Anyone else you little slut?"

"No," she said, crying softly now.

Jake gave a short laugh. "That's good. Now you can complete the family trio tonight, how does that sound?"

Denise said nothing. Jake walked over to her and grabbed her hair, yanking her face up against his. "I said, how does that sound?"

"Please don't," she started to beg, but Jake reared back and slapped her.

"Not the answer I wanted to hear, Denise," he said harshly. "Now don't say another word."

She shut her mouth, terrified at Jake's display of violence.

Jake reached down and tore her panties away, then took his jeans off and straddled her. Skipping the foreplay, Jake plunged right into her vagina.

"YAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA!" Denise screamed at the forceful, painful entry Jake had made, while Jake just laughed. Rocking back and forth, Jake plunged deeper and deeper into her tortured pussy, burying his cock as far in as it would go. He fucked her harshly for thirty minutes before releasing a hot jet of his sperm into her body as she cried. When he was finished, he crawled off and let Eric get on.

Eric was much more hesitant than Jake, since it was his first time, and was very gentle with Denise. He came very quickly too but Jake could see that Eric was enjoying himself very much, still in awe with everything. Eric had lost his virginity to his sister.

When it was over Jake asked him what he thought of it while Denise cried.

"That was fun," Eric said.

Jake smiled. "Good. Now run off, get a shower and go to bed. We've got another busy day tomorrow." Eric left the room and Jake started to free Denise, speaking to her as he worked.

"That was disappointing Denise. I thought you were a much better fuck than that. I'll have to punish you for this."

"Jake, please…"

"Shut up, Denise. We've got you for a summer, so stop begging, and crying, and whining, and all that bullshit and just do what you're told." When she was free, he told her to stand up. He removed her bra and taking her wrist, led her back to her room.

"I didn't get to do as much as I'd hoped today," he said, "so tomorrow will be doubly hard for you. Believe me; you will be punished for your poor performance tonight." Denise started to cry.

Once in her room, Jake slid her wrists behind her back and cuffed them, then cuffed her ankles with ankle cuffs. He watched as she walked over to her bed and laid down on it.

"It will probably be an uncomfortable sleep," he said, "considering the limited movement. But you brought this on yourself. I'll see you in the morning."

Jake turned off the lights and locked the door, leaving Destiny, alone, in cuffs, with her tears.

As the alarm went off, Denise drearily opened her eyes. The difficult position she had slept in had not allowed her to sleep nearly as long as she needed. Her arms were numb from being cuffed behind her all night and she struggled out of bed.