My name is Dave. I'm in my late 40's and live with my late wife's 26 year old stepdaughter, Katy. My wife passed away 5 years ago and it was a difficult time for both Katy and I. Katy was 10 when i got together with her mum, and 18 when we married. I never used to have any inappropriate feelings for Katy, but that started to change about 18 months ago. I'd found my libido starting to return after the loss of my wife, but having been out of the dating game for so long, I had no outlet for my building passions other than the internet and my right hand. I'd also started to notice how Katy had become a fine, young woman who dressed to show off her incredible body. I started to find myself straying into Katy's room whenever she was out of the house. I loved rummaging through her lingerie drawer, she had lots of very sexy underwear, all sorts of types of panties in every colour and material that you could imagine.
One day I found a pair of crotchless panties at the back of the drawer, that was probably the tipping point for me, as I realised that not only was she sexy as hell, she was also slutty too. I spent more and more time in her room, using her underwear as masturbation aids and imagining what she looked like in them. Whilst wondering around her room one day, with a pair of her panties wrapped around my cock, I decided to look in her bedside drawer. I opened it and wasn't surprised to see a 6 inch silver vibrator laying on top of a pile of paperwork. I listened carefully to check there was no sound or movement in the house and reached for it. Many thoughts went through my mind. I knew I'd already crossed a line, but could I cross another? I really wanted to, but I knew that I shouldn't. My mouth was dry, my palms were sweaty and my heart was racing as I brought it up to my lips. Before I knew it, my lips had parted and I was sucking on her vibrator. As I realised what I was doing, my cock started to twitch, this was all too much excitement for me. With trembling hands I was quickly able to get her panties away from my pulsing dick and catch my cum in my hands. A close one! I would certainly have struggled to explain why I had cum all over her knickers. Now I felt guilty, I quickly ran to the bathroom to clean up, before returning to her room to put everything back where I had found it. I carefully checked to make sure there was no possibility that I'd left anything out of place before leaving the room and closing the door behind me. I spent the next week trying to put the experience out of my mind, but I couldn't, it had been so exhilarating, if anything I wanted more. My opportunity came on a Friday evening when Katy told me that she was going to meet a friend on Saturday morning and they would be going to Manchester for the weekend. I hardly slept on Friday night, my mind was full of thoughts of how I would spend the weekend.
After sleeping fitfully, I awoke around 7am with a raging erection. I'd normally stay in bed and have a long weekend wank, but not this weekend. I wanted to make sure I was horny for what I had planned. I lay on my back, closed my eyes and visualised Katy in her lingerie as I gently stroked my cock. It only took a few minutes of edging before I was at serious risk of blowing my load. I jumped out of bed and went into my ensuite bathroom for a cold shower before heading downstairs for breakfast. I was half way through my toast when Katy breezed into the kitchen.
She looked at me and said, "Good morning, I'm heading off to Beckys soon, we'll have breakfast at hers before setting off to Manchester. I'll be back on Sunday afternoon at the earliest."
I replied, "No problem, you go and have a great time." Little did she know that I planned to spend most of the weekend in her bedroom jerking off with her panties. I impatiently fidgeted and aimlessly scrolled on my phone as I finished my breakfast while wishing she would hurry up and leave.
"Ok Dave, I'm off now," she called cheerily from the hallway, before I heard the front door close behind her.
I rushed upstairs, looked out of the spare bedroom window and watched her disappear along the road and around the corner before hurrying into my bedroom and stripping naked. Once stripped, I hurried across the landing to her bedroom, my cock was already hardening in anticipation and it bobbed a little as I scuttled into her room. I went straight to her lingerie drawer, I knew what I was looking for and quickly found them. My favourite pair of her panties, they were a cute little, pink pair, made of satin, decorated with black polka dots and a cute little bow on the front. I absolutely loved the feel of the satin on my smooth cock head, something I'd be experiencing shortly. I threw them on to the bed as my eyes darted around the room for my next aid. I soon located what I was looking for, on the floor near the wardrobe were a pair of knickers that she'd recently been wearing, maybe even as recently as an hour ago. I picked them up and looked at them, they were red and very, very small, they had three thin, black straps attached to the main section, which made up the back and sides. These must be new as I'd not seen them before, I drew them up to my nose and inhaled deeply, that made my cock twitch. I threw them on the bed with the other pair and walked around the bed to get the vibrator from her bedside drawer. I lay back on her bed, carefully positioning myself where i thought it most likely that she would usually lay. I took her vibrator and put it in my mouth, taking it in as deeply as I could before gripping it with my teeth as I ran my tongue around it.
My cock was now fully erect at almost four inches. Next I took the red panties and pulled them over my head, positioning them so that the gusset was over my nose. I closed my eyes and took a few deep breaths, savouring her musky odour and imagining the smell was from her pussy itself, rather than from where it had been. My cock was now starting to drip, I'd not thought this bit through, but I was too horny now to care, any precum drips on the bed would surely dry by Sunday and I could wash, dry and return any lingerie. I reached for my favourite pair of her knickers and carefully placed them over my index finger so that I could rub the smooth satin across my smooth, throbbing helmet. I was in absolute heaven, my eyes shut tight, my breathing quickening with my heart rate and pulse as i now wrapped her knickers around my cock and and slowly started to pump my fist up and down.
I was suddenly shocked from my kinky bliss by a shocked voice, "DAVE! What the actual fuck!" Oh shit, I knew that was Katy, I moved so quickly in my shock, dropping the panties that were in my right hand and using my left hand to pull the red pair off my head as I spat her vibrator out and tried to cover myself with her duvet. "I don't fucking believe this," she said, "You total fucking perv." I looked at her, but said nothing, what could I even say. My mouth opened and closed like a goldfish but no words came out. Katy stood in her bedroom doorway, phone in hand scowling at me. "You're so going to pay for this," she spat the words at me angrily.
"I'm sorry Katy," I stammered, "Please don't tell anyone."