I have a step sister who is 23yrs old, I am 16yrs old. I had only met her a couple of times as I lived mostly with my mum and when I did visit my dad she was'nt around much. I've only got to know her in the last 6 months as I have been living with my dad and stepmum since I left school. My dad travels a lot with his work and my stepmum usually goes with him. This has left me and my stepsister alone quite a lot, at first we never really got on as she did'nt like the fact that I had moved in but things are ok now apart from then fact she teases me a lot since she found out I have a thing for tights after she caught me having a wank with a pair of her mums tights I took from the wash basket, I forgot to lock the bathroom door and she walked in on me. She told me off at first but then thought it was funny and then made me finish wanking with her watching me and then she promised not to tell.

Since then she has teased me as much as possible, I think she has also told her best friend as she teases me sometimes as well. My stepsister is gorgeous and she knows it, she has long blonde hair, very slim with nice size tits and long legs. But since she caught me out she wears tights more then she used to and is always asking me if they are the right colour for her outfit or if they have any runs in them, when she sits down she more often than not crosses her legs very slowly to let me get a glimpse up her skirt and then she laughs at me.

Once I was downstairs and she called me for something and when I looked up she was standing at the top in a very short skirt knowing full well I could see right up it!! She knows sometimes she gives me a hard on and takes the mickey out of me or if I'm in the bathroom she sometimes bangs on the door asking if I need a hand with anything. I don't mind sometimes though because she has given me a few pairs of her old tights now and again.

I must admit that when I do have a wank its my stepsister that I think about mostly and I have told her too! She just laughs at me and says she considers it a compliment. I think she secretly enjoys knowing that she makes me horny and teases me even more.

A couple of weeks ago while she was out I was in her room intending to pinch a pair of her tights when I found some holiday snaps in her knicker drawer, and I could'nt believe my luck when I found one of her topless on the beach and she was only wearing a little thong. My cock instantly came to life and I had a wank right there in her bedroom. I've kept the photo and have had a lot of fun with it ever since.

But the other night she had gone out to a party and said she might stay at her friends place so not to expect her home. At 10.30pm I went up to my room, stripped naked and put a pair of her tights on and started having a wank while looking at her photo. I was getting into a good rythm when all of a sudden out of the corner of my eye I realised my stepsister was standing in the doorway!!

'You really should learn how to shut doors properly' she said as she started to laugh at me.
'Sorry, how long have you been there' I mumbled to her as my cock started to shrink while I covered myself with a pillow.
'Long enough, those tights are definitely your colour' she giggled. She then walked into the room and sat on my bed 'oh don't stop on my account feel free to carry on' she said.
Then she saw her photo propped up on my bedside table 'well, well what have we here you really do get off thinking about me don't you'
I tried to think of something to say but all I could do was beg her not to be mad at me and say I was sorry for taking the photo.
'I should hope you are sorry you little pervert, what do you think your dad would say' she said.
'Please don't tell I promise I won't take the photo again' I begged her.
'Don't worry I won't tell on you, I quite like having you around' she giggled.

I then told her that she did'nt make it easy for me the way she was always teasing and giving me a quick flash up her skirt. As I said it she turned as she was sitting on the bed to face me and moved her knee at an angle and I had a clear view right up her skirt and could see the gussett of her tights and my cock immediately started to come to life again.

'Well you can get rid of the pillow I want to see your cock again' she said.
I looked at her knowing that I was semi-erect and with every glance I took up her skirt was getting bigger!!! She then grabbed the pillow away from me and said 'oh my am I causing that' and then started laughing at me again.
'Its not funny you know I can't help it, you are so gorgeous and your flashing at me right now as well' I said as tears started to appear in my eyes.
'Hey I'm sorry don't cry, I was only having a bit of fun with you and I thought you enjoyed having a quick flash now and again' she replied.
'I do like it, in fact I love it but I get a hard on everytime and then I need to have a wank' I answered.
'Are you a virgin then, have you never seen a woman naked' she asked.
'No I've never even touched a woman, never even had a girlfriend either' I explained.
'Oh I'm really sorry honest I did'nt know I promise I won't make fun of you anymore, you can even keep the photo hows that' she said.
'Really, even though I'll probably still wank over it, you know' I said
'Yes I realise that but.......she stopped in mid sentence.

We sat in silence as she looked at me and then said to me 'would you like to touch my legs'.
I sat there open mouthed and eventually muttered 'really you mean it, you're not teasing me again'.
'I promise I'm not winding you up, you like tights don't you so go ahead feel my legs, not too far up my skirt though you can even have a wank if you want to' she said.

She then moved and laid down with her head on the pillow beside me. My cock now was nearly bursting through the tights I had on so I pulled the waistband down and started stroking myself while staring at her. She looked gorgeous lying there and my cock felt like an iron bar as I reached out and nervously touched her knee and slid my hand down her shin and back to her knee again. The sheer nylon of her tights felt wonderful and my hand started to shake as I got past her knee to the hem of her skirt as I looked at her for assurance to put my hand higher.

'Go on its ok just don't try to touch my pussy!!! you can even have a peek up my skirt if you want to' she said.
As soon as she said that I lifted her skirt and got a shock and surprise when I realised she had no panties on. 'Wow' I said.
She laughed and said 'thought you might like that'

I started wanking even faster as I caressed her legs and went as near to her pussy as I dared. She then opened her legs and ushered me to get between them and said 'come here I have an idea' as she opened her arms beckoning me towards her. She reached out and took hold of my cock and then put it back in my tights and told me to lie on top of her, she positioned my cock so it was rubbing against her pussy so there was only our tights between us. She then told me to grab her nylon covered bum cheeks as she put her hands down the back of my tights and told me to push against her as she also pushed against me. 'Don't worry about making a mess just relax and cum when you want to' she said.

The feeling was fantastic my cock had never seemed so hard and could'nt believe it was happening and then suddenly I could feel my cum exploding from my cock spurt after spurt shot out as I pushed against her pussy. And then my stepsister started moaning 'oh Jesus, don't stop keep going, push harder I'm cumming as well oh Jesus that is so nice ooohhh yes yes'.

We laid still for a minute, still in eachothers arms when she told me to roll over.

'Well I think we both ended up enjoying that, I was shocked how hard you got' she giggled.
'That was amazing I've never felt anything like that before''thankyou for letting me do that' I said.
'I'll tell you what I promise I won't tease you anymore and maybe just maybe we can do it again another time ok' she said to me.
'Wow you really mean it, I'd love to do it again' I replied.
Hey don't get too excited I said maybe just maybe!!! she laughed.
Yeah I know but you did say you would'nt tease me either! I laughed back at her.

THE END