I kneeled down and started unzipping his jeans. Jason’s cock was already getting hard when I grabbed it with my hand. As I started slowly stroking it his monstrous member became rock hard between my fingers. When I was about to wrap my lips around the head of his cock, he stopped me. Then he grabbed my hands and forced them behind my back.

“No hands” I heard him saying as he placed the whole length of his cock on my face and reached for his phone. I started licking his balls while he took several photos of his dick laying on my face.

“Take it” he said, but my greedy mouth was already wrapped around his shaft embracing it in the depths of my throat. Weird taste filled my nostrils. Despite of that, I continued moving my head up and down trying to take as much of him as possible inside my mouth.

“I told you that I fucked your sister’s asshole earlier, don’t look at me surprised” maybe something in my expression gave me away. To make sure I don’t hesitate much he grabbed my head and forced it further down on his pulsating member till head of his cock hit my tonsils. He fucked my mouth like an animal for a few long minutes. It felt like he was trying to destroy my face with his cock. He made me gag and gasp of air with every thrust he made until finally enormous quantity of sperm erupted from his cock directly in my throat. As he withdrew his member, he coerced me to wait for him on my knees.

He came back with another man who presumably was treating my sister in the next room. Later I had the opportunity to learn that his name was Mike. Jason didn’t waste any time and shoved again his cock in my mouth. After the first few thrusts, I heard a lite buzzing sound behind me. As I was concentrated on the dick in my mouth, I didn’t pay too much attention to sound until my beautiful long hair started falling around me. Mike was shearing my scalp.

I panicked, and I tried to stand up, but I wasn’t able to as Jason’s grip was too strong. It was hard to resist with that giant dick fucking my mouth. When he cummed for a second time in my oral cavity, my head was already completely stripped from any hair.

As soon as his softening cock came out of my orifice, I began sobbing, but they didn’t leave me any time to recover from the shock. Mike held my bald head as Jason forced an open mouth gag inside my mouth. The black rubber fit perfectly between my lips. The hole in the center of the rubber part felt large enough even for a giant cock.

“Take off your clothes” from the look in his eyes I understood that I don’t have any choice. I hesitantly stripped everything even my underwear. The chilly air in the room made me shiver, my nipples got hard.

Jason grabbed my throat and pushed me into the next room. He pressed me against wide horizontal plank in the middle of the place. A second after my skin felt the hard wood material, he spread my hands and shackled them to the board. He released my neck just to tie it with leather collar to the same plank. After he finished nailing me to the wooden board, he pulled a rope causing the plank to raise a bit higher leaving my standing only on my tiptoes.

While I was occupied with the struggles of the new position my body was forced into, my sister entered. When I looked at her and I noticed something strange. Something wasn’t right. Apart that she was completely naked, she was blank staring at me. Not even a sign that she recognized me. Even more concerning – she was bringing a spreading bar with her. Under their observation she bent down and attached the spreading bar to my ankles using the leather straps on the two sides of the bar.

That made the situation even worse for me. I was already barely standing on my toptoes, trying not to hang on my hands and neck. Now was a way more difficult, the bar distancing my legs further apart.

Just as I was thinking about my troublesome situation, things got way more horrific. An awfully large dildo was presented to me by the hands of my sister. I must have looked really scared, but anyway Jason decided to frighten me even more.

“There are some special effects hidden inside this small tool” It was way inappropriate to call this dildo small. I was almost sure it was a bit over 2.5 inches in diameter and maybe about 10 inches in length. The surface of the monster was covered with a lot of different sized bumps. The lower end of the shaft, just before the base, had a deep metal looking channel carved around the perimeter of the monster. Its base was shaped like a stripe – a bit thick, curved upwards and slightly tapered on the inner side. It definitely seemed weird.

My sister applied some gluish gel on my cunt, as both men continued to watch. She carefully cleaned her hands before applying another, differentely colored gel along the shaft and on its base. Then, for my surprise, she went behind me and with all of her force shoved the first inches of the dildo inside my unexpecting asshole.

Sis continued working my asshole with the dildo. The monstrous shaft sank deeper and deeper into my rectum canal. Strange sensations overwhelmed my senses. The chilly feeling of the intruder in my bowels, suddenly started to fade away and was replaced by a tingling sensation in my colon.

One final thrust overcame the resistance. My sister had shove the whole monster inside my asshole. The curved based of the dildo fit perfectly against my cunt, completely covering it, even hiding my clitoris. My unwilling sphincter slipped inside the channel carved in the monstrous shaft. This way the clenching muscle kept the dildo buried inside my hole.

Then it began. At first, I thought that somehow ants were crawling on my cunt. I looked down but I only saw the plastic base of the dildo covering my precious hole. A few seconds later, as the uncomfortable feeling grow, I realized that the skin of my crotch was turning to red.

“Don’t worry it will be over soon” he laughed. “It’s just the two gels doing their job. See when they mix under the influence of your body heat they produce acid. It won’t hurt you, it will only hurt your cunt”

I tried to scream, but the gag didn’t allow me. I felt every second. The acid slowly disintegrated my cunt. The pain dulled my senses until I passed out.

I was unconscious for a short period of time. Maybe about half an hour. When I woke up the burning feeling had disappeared. A finger snap, made me look towards the source of the noise. It was Jason. Mike and my sister had disappeared.

“I have one more surprise for you, cunt” he grinned. “Do you want to know it?”

I tried to nod NO, but the collar around my neck didn’t permit me to. He went behind me and inserted a rod in a small hole in the base of the dildo. I could not have seen it earlier. But now I felt it. Sudden sharp pain hit my sphincter. Even if I was able to say no, he would have done it.

“Don’t panic. It’s the needles. New technology.” He laughed.

I don’t know how many needles were piercing my sphincter muscle but it felt like a lot. He moved the rod in and out of the dildo buried in my colon a few times, which caused the needles to hide in the channel and show again, effectively puncturing my sphincter in million places. At least it felt that way.

“Don’t be alarmed by what happens next, cunt. See you tomorrow.” he said and went out of the room.

As he slammed the door, I felt how the dildo started slipping away from my rectum. By habit my sphincter tried to clench, but to no avail. It seemed that the needles had damaged it. A loud thump declared that the dildo had fell to the ground. The relieve I felt initially was followed by sheer horror as I saw what was left from my cunt. The skin was badly burned. The pussy lips were nowhere to be seen, most probably they were completely melted. My clit was also seemed badly damaged.

My muffled cries were interrupted by the entrance of my zombie-like sister. Without any warning, she walked behind me and inserted her fist in my wrecked asshole. She played for a while, despite of my protests, a few times burying her hand in my colon almost to the elbow. She withdrew her hand suddenly. The rapid movement caused my rectum to partially follow her hand outside. Her hand sequentially caressed my ruin holes. Then she left. I was left alone with the dull feeling in my ruined holes.

To be continued...