The first time it happened to me it was a massive, but surprisingly pleasant, shock. I had been making love to my long-time girlfriend for a couple of hours, we had tried many different positions, and I was close to cumming.
Then all of a sudden, without warning or any lubrication, I felt her force her finger into my ass and start moving it around. As soon as she had it in fully I couldn't hold back and, with a force like never before, I started to cum. Jet after jet shot from my cock deep into her, more than ever before, and I thought I was never going to stop. She was screaming and writhing in orgasm with every twitch of my cock, and each time she did she pushed her finger deeper and harder into me. That was the last time I ever saw her.
She moved away a week later, to another country, and that was my goodbye fuck. It was also the last fuck that I enjoyed. Sex just wasn't the same anymore unless the woman I was with finger fucked my ass, and not every woman would do it for me, but even that soon wasn't enough. Fingers were all roughly the same length and size and my ass had obviously loosened too much to get the same, tight as a virgin feel, as the first few times. That was when I started to go shopping.
I scoured the internet for all sorts of anal sex toys and was surprised at how many different varieties, sizes and shapes there were. The first time I looked I purchased a few smallish items, slightly larger than a middle finger. After placing my order I closed down the internet and, realizing that just the excitement of actually ordering the items had caused me to gain a massive erection, I stripped out of all my clothes and lay, completely naked, on top of my bed.
Gripping my cock firmly I closed my eyes and began to stroke my cock slowly, soon building up speed, but still a way off from cumming. The muscle in my arm began to ache so I changed hands but even that didn't get me much closer. It was then that the idea formed in my mind. I had never done it before but I thought it was worth trying.