I know it was my idea to play blackjack with my sister. I know it was my idea to bet the clothes I was wearing and the clothes in my closet. I know that is my fault that I am now completely naked. However, my sister has now locked me outside of my house as a prank and I am still not wearing anything. This crosses the line. I am mad. I want **** on my sister.

"How do I get ****?" I ask myself. I know that I am not good at cards, but I do have a secret weapon. Fortunately for me, my family keeps a spare key under a ceramic frog by the front door. I let myself back into the house and went to my room for my tool of ****. Three days ago, my sister experimented with ****. My parents don't know, but I got a picture without her knowing. I scanned a copy of the picture into my computer for insurance and then went to knock on my sister's door with the picture of my sister and my phone hidden behind my back.

"You got back in," Ashley chortled. "I forgot about the spare key."

"We need to talk," I stated causing Ashley to let me into your room.

"If you are here to beg for your clothes..." Ashley began.

"Nothing like that," I replied.

"What, then?" Ashley wondered.

"What would Mom and Dad say about this?" I threatened.

"You can't!" Ashley squeaked as she tried to grab the picture.

"I have another copy!" I admonished to silence any further attempts.

"What do you want?" Ashley sighed.

"Take off your clothes," I ordered.

Knowing I had the goods on her, Ashley stood up to peel off her shirt. Next was her pants. I was a little ashamed that this was starting to turn me on a little. My sister looked at me defiantly as she took off her bra to reveal her full breasts. She finally took off her panties to reveal her shaved pussy.

"I suppose that you are going to take a picture of me to put on the Internet," Ashley guessed as she noticed my phone.

"First, I want you to masturbate," I demanded with an evil grin.

"This is it!" Ashley growled as she sat on the chair in front of her computer and started rubbing her breasts.

At first my sister was mad, but after a couple of minutes she got turned on and started moaning. She now was using one hand to play with her breasts and she was using the other to play with her pussy. I was happy to be filming the whole thing on my phone. I originally intended this session to be used for ****, but I was now so turned on that I needed release right this second. I was using one hand to film this and the other to rub my own pussy. I even wanted to be in the video too and as soon as this was over, we were both going to be on the first porn site I could find.

"Looks like my sister is as big of a whore as I am!" Ashley loudly moaned.

Our breaths were getting quicker and our screams were getting louder. We were almost there. Both of us hit orgasm at the same time and we screamed while arching our backs. we squirted our cum onto the floor.

"Did you enjoy that as much as I did?" Ashley asked with very little breath.

"Yes, I did," I answered with a huge smile.