It was my first long weekend at the lake with my cousins and older sister. I had just turned 18 and they said as long as I didn't leave the camp, I could have beers with them. It was fun, we never got too wild so we didn't attract attention. I woke up on the Sunday morning earlier than the others and intended to go fishing, something at the edge of the campfire caught my eye though, looked like a pile of partially burned polaroid pictures. Only one or two were actually destroyed, the rest were fine but they were shots of a naked girl from the neck down. Her hair was either short or held up but there was a few pretty great poses where I could see her full breasts and shaven pussy. I quickly put the undamaged ones in my pocket and made sure the others burned in the few embers that were still hot then went to my fishing spot.
I caught a few fish and cleaned them at the lake and had the fire going again by lunchtime, with the fish I caught and some of our supplies I had enough to feed us all.
"Well if this is how you are on lake trips little brother, you can come back, this is good." Said my sister Amber as she ate some fish.
"The fishing up here is great, I know what lures are best." I replied.
We had some fun on the kayaks and paddleboards, I had almost forgotten about the pictures until I went to bed but looked through them again and picked my favorites and since they didn't look like anyone I knew I laid them out and jerked off to them. I became addicted to them. When we got home I found a good hiding place and most nights I'd pull them out, jerk off then hide them again, it was my secret addiction.
A few months later, my Mom had got a new job and we were all moving into a bigger house across the city. Our Dad had vanished when we were very young so it was a big deal for mom getting her promotion. My sister was helping me with the last of my boxes, as she picked one up the bottom split a little and my pictures fell out. I turned round as she picked them up, her face was red.
"Wh... where the fuck did you get these?" She said after looking at them.
"I found them at the lake, they were thrown on the fire but only a couple were burned. I figured they were Jay's ex or something." I replied.
"Why did you keep them, what are you doing with them?"
"I... I uh, jerk off to them." I said, feeling my own face go red.
Amber stared at me for a few seconds.
"Why?" She finally said.
"She's sexy as hell, I've never seen a woman so sexy, do you know who she is?"
"Yes I know who she is. It's me."
My stomach dropped.
"I don't believe you!"
Amber handed me the picture that was essentially a close up of her breasts and then pulled her shirt off and pulled up her sports bra letting her breast spill out. I practically had the picture burned to memory, she had a pretty distinct trio of freckles by her left nipple that drove me wild and there they were, right in front of me.
"I... I'm sorry, I didn't know it was you, I swear." I said.
"Did you mean what you said, about me being sexy?" She said, covering herself back up.
"Y... Yes."
"Keep these safe, do not tell a fucking soul that you have them. Have you ever shown anyone else?"
"No, I swear."
"Lets get the rest of this stuff moved, we'll talk about this later. I'm not mad at you okay." She said then kissed me on the cheek. She stuffed the pictures into the box again then carried it out to her truck.
We spend the rest of the day unpacking, Mom's company had hired movers who had done most of the work so we just had to arrange the little things and unpack a few personal boxes. I sat on my bed as I unpacked the box that had the pictures in it and had just put them away when Amber came into my room. She smelled like she was clean out of the shower and was wearing a robe, her hair up in a towel. She closed the door behind her then sat on the bottom of my bed.
"Mom's gone to that dinner party, she said to just order pizza for ourselves." She said.
"Her new boss really likes her huh?" I replied.
"She should, 2nd day there and she won them a $3 million account."
"Nice, she's been so busy I've hardly seen her."
"Why don't you have a girlfriend little brother?"
"I... I'm afraid."
"Afraid of what?"
"That they won't like me. When I was in gym class the guys said my cock is gross and deformed, I couldn't face another woman if one seen it and laughed or something."
"You have a foreskin, most guys don't, Mom said she refused to conform when you were born."
"I'm sure it's not that, my friend has one too but they don't make fun of him."
"All cocks are different little brother, don't worry about it okay."
"Okay."
"Do you still have that camera that Mom bought you last year?"
"Yes."
"I don't like those polaroids, my ex took them and he's a dick. If you promise to not put them anywhere online and never show anyone I'll let you take new ones with your camera."
"But, they're naked pictures."
"Marcus, you've been jerking off to naked pictures of me, I want you to have better ones so I can burn those polaroids."
"I, okay."
I got my camera from my box and set it up, I was shaking though and Amber started laughing.
"Oh sweetie, you're so nervous, all your pictures will be blurry." She said.
"I can't help it."
"Here, put the camera down and sit on your chair."
I did as she said, Amber stood up and faced away from me then slowly let her robe fall from her shoulders and onto the floor. Her ass was amazing, she looked over her should at me and I felt my cock harden. Before she turned around I did my best to adjust but I couldn't hide it, when she faced me, her beautiful naked breasts right before my eyes I was hard and almost drooling at their magnificence.
"Well I'm taking that as a compliment." She said, looking down at the tent I'd made in my shorts.
"I'm sorry, I couldn't help it."
"Sweetie, relax, I am giving you this. I'll tell you a secret, I get off on showing off."
"Well you're very sexy Amber, I can see why you like the gym."
"Thank you. Now have you finished shaking?"
"I... I think so."
"Good, I'm going to lay on the bed and pose for you, make sure all the pictures you take cut off my head, zoom in if you want, get as close as you want, I'll check your work when we're done."
I took dozens of pictures of her, I did as she asked and kept all the shots below her face but I got close ups of her nipples, full body shots and close up shots of her pussy when she opened her legs for me. I noticed she was wet too, her labia were glistening with her juices. She sat up and smiled when she'd given me a few of her beautiful ass too.
"Lemme see. Ooh, these are great sweetie, I'm deleting this one though, can see my face." She said, looking through my camera.
"Sorry, I didn't mean to."
"It's fine, one picture out of all these. I love them, I may want a copy of the disk for myself. Will you let me take some of you?"
"I uh, I suppose it's only fair."
I wasn't as graceful when I stripped, I stood before her, not knowing what to do with my hands and worried what she'd think of my cock.
"Holy shit. Do you know why those boys made fun of you baby?"
My heart dropped, I thought she was going to be mean.
"N... no."
"Your cock is magnificent, you're huge! I did not expect you to have this beautiful monster between your legs." She said, staring at my cock.
"Really?"
"Yes baby, those little boys fucking knew you'd put their little dicks to shame. Can I touch it?" She said, I didn't get a chance to reply before she had her fingers round my shaft.
I'd never had a woman touch me in any way before. I didn't care that she was my sister, her hands were warm and she was stroking my cock and I was in heaven. I stammered that I was going to cum but Amber kept going, getting faster as she tightened her grip. I hadn't jerked off in 2 days because of the move so I was pretty full, my first spurt hit her in the face then the rest of my climax splashed over her breasts as she kept stroking me I gasped and moaned in pleasure.
"Holy fuck, I thought you were never going to stop cumming." She said with a grin.