Back in the late 1980's I was stationed at Shemya Air Force base in Alaska. It's an island off Alaska and pretty remote and B-52's would be refueled there.
I was 19 and the place was like 100% male which really sucked.
My 17 year old sister, Lisa, wrote to me every week and so did my other siblings. It was boring and lonely. The letters from home were the best part of it.
Lisa would ask if I found a girlfriend there jokingly in her letters and I'd send her a funny reply in my letters about how popular ANY woman would be there!
I had written her this one letter when I was bit depressed about never meeting anyone and how all the other guys seemed to have girls back home and they teased me about it.
We were from a small town in South Dakota. There was nothing to do in SD and I joked that I'd been assigned to the only place on earth more boring than SD.
The next mail call I got the usual assortment of letters and a few magazines, and a large manila envelope from my sister Lisa.
There was a letter in it and another large sealed envelope.
The letter instructed me to read it through to the end before opening the other envelope.
I did and it was the normal kind of letter she sent until the end.
The last sentence read "Enclosed something just for you.......tell them I'm your girlfriend when they ask. Love and kisses, Lisa".
I opened it in my room, shared the room with two other guys, and it was a 5x7 of Lisa, a slim and very pretty blonde, in thong panties and a lace push up bra on her bed.
At the bottom it read "Miss you.....**me home soon. Love, Lisa" and I admit freely that I proceeded to jack myself off to that picture all night.
I put it in my locker just as if I wanted to keep it somewhat visible only to me knowing my roommates would eventually notice it.
They were impressed I could tell because the black guy, Reese, gave me a smile and a "Damn your woman be fine!" one day when we were all in the room.
I just smiled back.
Later that week I got a morale call, a call from home, and I went to the charge of quarters desk.
It was my sister Lisa.
"Did you like the picture?" was the first thing she asked after I said hello.
I thought it was my mom calling. She called every week.
I was so fucking nervous.
"Yes" I said.
"Would you like me to send you some more? After all, you are my boyfriend and I really miss you." she replied.
I said yes and we talked about a few other things.
"Did you jerk off to it Bill?" she asked me.
"Yes" I admitted.
"I'm thinking about you all the time" she said softly and if there hadn't been someone at the desk I would've been stroking it tight then and there.
"Do you think about me" Lisa asked.
"Yeah. A lot." I replied.
"I'm gonna send you more. I want you to jerk off to them. Ok?"
"Yeah. I will" I replied, trying to sound casual, as the CQ listened in on my end of the conversation nosily trying to be casual about it.
"I bet you will!" Lisa said, laughing loudly, and I finally smiled.
A few days later I got another large envelope and a normal letter that ended with "Please keep these pics private....I know you must be so lonely there. The ones in the small envelope you can show your friends. The others are just for you. Don't worry because Kelly (her friend) took them and she thinks they are just for me because I took some of her too. Love you, Lisa."
The ones just for me were total nudes of her. Three nudes and three regular pics.
After a few months of this, and dozens of pictures of my beautiful sister in skimpy outfits and/or nude, I was thinking of her constantly and beating my meat raw daily.
I finally got a 10 day leave, after she'd started college, and I went down to SD to visit her there. She'd gotten an apartment with two other girls and had told them I was her boyfriend.
We fucked for 5 days, day and night, and I am the luckiest bastard on earth that she didn't get pregnant. Then we drove home to visit my parents and other siblings for a few more days before I flew back. Lisa snuck into my room every night at my parents house and we fucked like rabbits. Honest to God I am amazed our siblings and parents didn't have any suspicions.
We weren't particularly close before I'd left for the service. I mean we weren't hostile or anything. We were two years apart and had different friends and such. She'd never expressed any physical desire for me and I'd always been interested in the few girls my age in our small town.
I went on to other duty stations and Lisa finished college.
She ended up marrying a guy when she was 24 and I married soon after.
She lives in Arizona now and I live in Colorado.She has 2 kids and I have 3 now and this summer the family, all of my siblings and cousins, aunts and uncles, and grandkids had a reunion weekend at my parents place in SD to celebrate their 50th anniversary.
We were all reminiscing and it came around to my military service and I mentioned how great it was to get letters from home.
Well, Lisa touched my hand as I said it and interrupted.
"I know that my letters were your favorites, weren't they?" she said teasingly and squeezed my hand. She raised her eyebrow suggestively and I about got a stiffy thinking about them. I hid them away years ago knowing my wife would go apeshit if she ever found them.
"Remember when you visited me at college? So much fun!" she added, laughing at her little inside joke, and I smiled and told her that I'd never forget.
We haven't ever talked about what had happened between us. I guess we both knew nobody would ever approve of it so we just both kept quiet.
The next day Lisa texted me this simple message "I wish it was 1989 again. You were the best....ever."
I know her marriage is a bit bumpy but they always seem to mend things up my older sister tells us.
My marriage is very good but.....Lisa was definitely the best sex partner I have ever had. By far.
She sent me another text of herself in bra and panties that night with "Remember?" as the text. I deleted it right away.
A week later she called my wife and suggested that she and her family come up to Colorado, or we go to Arizona, for a week for Christmas.
My wife was very much in favor of either.
That night I went up in our attic, telling my wife that I was looking for a tool I'd lost and thought I may have never unpacked from one of our moves, and I opened up the box and took out Lisa's pictures and beat off to them thinking about the sex we'd had.
I think her marriage is in trouble and this could be trouble for mine.
I love my wife.
I can't do this.
I want to.
But I can't.
I really want to.
I cannot do this.