/1/ My life with my Mother-in-law’s underwear

I have known my Mother-in-law {Jo} for over 40 years now. From the first time I, as a 20-year-old, saw her, I wanted her. She was a voluptuous woman in her mid-forties and I was immediately fascinated by her breasts. From under her blouses it was clear that they were large and round, and I so wanted to see them for real. I used to take every opportunity to look at them, trying desperately to get a sight of some cleavage, or a bra strap, even a bra-line through her blouse would make me instantly erect. I would often masturbate fantasising that I was kissing and fondling her breasts, tweaking her erect nipples, or shooting my cream over her bra-encased breasts. Over time I began to fantasise as much about her bras and panties as about her, and with time the lines between woman and underwear became blurred.
One summer’s day when I was staying at my girlfriend’s house I got an opportunity to take my fantasy one step further. My GF was out working, as was her father, Jock. Jo was in the garden and I was supposedly reading my books studying for an exam. From my room I could look onto the back garden and Jo looked very busy with her gardening tasks. Suddenly a crazy thought came into my head. Jo and Jock’s bedroom was the room next to where I was studying. I had an impulse to go into their room and look around to see if I could examine Jo’s underwear. Suddenly I was no longer in charge of what I was doing. I took a last look outside to check Jo was still busy, and my cock grew even more erect as I noticed she was at the bottom of the garden looking fully occupied. In a flash I was in their bedroom totally ignoring any chance of being caught. I didn’t really know what I was after; it was like I was in automatic mode. I crept over to the chest of drawers making sure I couldn’t be seen through the bedroom window. Silently I pulled each drawer open until BINGO! I found one that was full of lovely sexy bras and panties. I just grabbed the first pair of panties which took my fancy, closed the drawer, and crept back into my bedroom. I examined my prize, not realising that this was the first in a long line of Jo’s panties that I would hold in my trembling hands. They were white nylon, size 16, with lots of lace along the top and on the legs. My cock was sore from its erectness. Suddenly I knew I had to put them on. I went into the bathroom along the corridor, locked the door, got out of my clothes as quickly as possible and stood there naked in front of the mirror. My young cock had never been so rock-hard. Slowly I stepped into the panties and pulled them up over my cock and balls. I was amazed how it all felt, my balls were cupped tightly inside the wispy material and my huge erect cock was held in by the lovely nylon tightness. For the first time in my life I saw pre-cum, a tiny patch staining the front of Jo’s panties. That made me even harder.
Little did I know then that my life as a sissy, pantie-wearing crossdresser had begun.
I looked at my reflection in the mirror and admired my cock and balls encased in Jo’s wonderful panties. I pulled down the front of the panties and started to wank myself slowly. I fantasied about Jo’s huge tits, I thought about how these panties would look on her, the material covering her cunt and arsehole. I thought about how pleasurable it would be to cum all over the front of the panties, but even then I realised that I would not be able to hide that mess from Jo, so it wasn’t actually a possibility. Within seconds I came furiously, massive ropes of cum shooting all over the tiled bathroom floor. Hurriedly I pulled the panties off, checking that the pre-cum stain was hardly noticeable. I cleaned up the floor, got dressed again and moved back into my bedroom. Jo was still at work at the back of the garden, so I popped back into their bedroom and replaced the panties in the underwear drawer. Little did I know how much a part of my life that underwear drawer and its contents would become. Making sure the panties were placed in exactly the position they had been in before I borrowed them - and how good I became at that over the years - I took a last lustful look at the drawer then closed it, then left the bedroom.
Now the fear overcame me. Would Jo notice that I had worn the panties? If I was discovered how would that impact my relationship with my GF? I promised to myself I would never take such a risk again.

The next day I broke that promise.