"Oh shit, Addie. What the fuck?"
Lucas stood motionless and quickly covered himself. He had no idea she was even there. There he was, in the hallway, naked, checking himself out in the mirror. God knows how long she had been watching him.
"Calm down." she said, standing against the door frame to her room. She was sipping her coffee and looked like she had just woken up. Addie, or Adriana, is Lucas' sister. Three years older than him, she doesn't live at home; she lives away at college but comes back every month or so. She wasn't due back until later that night, but that was the least of his concerns.
"How long were you watching me?" For some reason, the thought of Lucas going to his room and getting at least a towel to cover himself had evaded him. He just stood there, looking down and embarrassed.
"Long enough to see you've been going to the gym. Nice six pack. You're looking good, bro." as she turned and nonchalantly walked into her room.
Lucas headed for his room and quickly dressed. Sitting on the bed in thought for a few moments, wrapping his mind around what had happened. He knew he had to see if everything was okay. He walked to his sister's room, where he found her lying on her tummy on her bed looking at her laptop. Addie is gorgeous. She is about 5' 10" with beautiful olive skin. Lucas had never thought about her in a sexual way, but was always glad to introduce her as his sister, and certainly didn't mind hearing the guys comments about her being sexy. She was. She kept herself toned, had nice 34B breasts and a bubble butt. Even in the sweatpants and plain white tee shirt she had on, she looked amazing. She didn't even have to try.
Lucas walked in nervously. "Look... Addie. I'm sorry for what you saw. You won't tell Mum and Dad, will you?"
She quickly closed her laptop and looked up at her blushing brother, giggling. "Tell Mum and Dad? Tell them what? My brother was checking himself out in the mirror? Dude, you're 18 and it's hardly a crime."
"Okay, good. That's never happened to me before so... you know..." he tried to explain, trailing off but feeling better about the whole situation.
"You're such a worrier sometimes. Not to get too TMI, but it's not the first time I've seen a guy naked."
"No," he chuckled. "I guess not. Anyway, I'm making some breakfast. Are you hungry?"
Addie sipped her coffee and shook her head 'No'. Lucas headed downstairs and made something to eat. Later on as he chilled watching TV, the postman deliver the mail. As he went to get up, he heard Addie race down the stairs to the front door. He could see her through the reflection in their entryway mirror that she was quickly looking through each envelope. She seemed to look at one for a while, and kept hold of it as she dropped the rest of the mail on the entryway table and headed back upstairs. Lucas thought nothing of it, and flicked through the channels until he dozed off.
Later that afternoon, Lucas woke up and dragged himself upstairs to finish his nap. As he passed Addie's room, there was muffled conversation on the other side of her door. Creeping closer, he pressed his ear to the door and listened in.
"I can't pay until next Friday... No, no, I get that... I'm just asking for a few more days... Well it's a larger payment than I thought and... Look, you don't have to be rude. I know what I bought but... Okay, well I can't until I get paid next Friday. Yes, please note that. Bye."
She was in some kind of trouble. He felt bad. Lucas had always been protective of Addie, even though she is older. He heard a long sigh and then her sheets rustling like she was getting up. He tip-toed down the hall and no sooner did his door close than hers opened, and soon he heard the shower running. This was his chance. When he heard that she was clearly in the shower, Lucas raced to her room and saw the crumpled piece of mail on the bed. He was shocked when he opened it... it was a credit card bill. The card's credit limit was almost exhausted. It was past due, and that was a Final Notice. Lucas didn't even know she had a credit card. Then it dawned on him...
"Oh shit, this is her emergency card Dad gave her. What the fuck has she been buying..."
Lucas raced back to his room and grabbed his phone and a flash drive. He took a picture of the entire bill and put the flash drive into her laptop. She never locked it. He needed her web browser history so he could see what she was buying. After copying that over, he saw a default icon on her desktop. "My Albums". It was obviously pictures and was several gigabytes in size. "What the hell...," he thought, and copied that too. After what seemed like an eternity, it finished copying and he left her room exactly as it was.
Back in his room, Lucas started doing Internet searches for the orders on her credit card bill. What he found shocked him. Lingerie. Sex toys. A pretty nice HD web cam. He had to Google the other sites and found out they specialized in bondage equipment, and one site even sold dildos in the shape of animal cocks. "Geez... my sweet Addie... how are you into all this stuff?". He felt himself getting hard. After talking himself out of a boner for his own sister, he loaded her web history. With any luck, she would let the browser save all her passwords and log him right in... which it did.
Lucas checked her Order History on every site. She had ordered quite the selection of vibrators, realistic looking dildos, butt plugs, as well as lots of bra & panty sets. From the bondage site, she had bought a 'starter pack' with a set of 4 leather cuffs, a collar, a riding crop, nipple clamps, a ball gag, and a blindfold. He chuckled when he saw the animal cock... it was a dog one and even had a 'knot' at the end.
Being a guy, Lucas' cock was fighting the boxers and shorts it was confined in... he gave in and welcomed it to the world. Lucas went into auto-pilot, massaging his cock while looking at the pictures of what she had bought. He was still amazed that his innocent-looking Addie was into all this stuff. Now while Lucas' cock may not look much soft, it's an impressive 7 inches when it's hard and not too shabby in the girth department either. He would definitely be your classic "grower," but he was deceivingly big compared to what his flaccid state hinted at. Using his own precum to lube the shaft he was happily jerking himself to a good cum...
...when a knock at his door startled him to death.
"Hey Lucas, are you in there? I'm going out with some friends and will be back later, k?" It was Addie.
"No problem, Addie." he tried to say in a composed, calm way. As he heard her leave, he decided to check out the 'My Albums' folder. If Addie's knock at the door killed the mood, what he saw when he opened the folder put him right back on the edge. He had to quickly take his hand off his cock to save from blowing his load instantly. There were hundreds of naked shots of her... mostly selfies, as well as a decent collection of videos also taken with a smartphone.