*Note*
This is a mostly true story, with names changed and parts filled in where there are holes in my memory.
This happened years ago with my then Mistress. I had had a kink for chastity for awhile, but had never acted on it on my own. I did not see the point, as I figured I would not have the self control to be my own key holder for any length of time. However, when I brought it up to my Mistress, she seemed interested in chastity at least on a scene by scene basis, so we began looking at cages. We settled on a metal, bird-cage style chastity device, which would end up having a lot of issues, but luckily they are not relevant to this little tale.
She and I usually manage to play about once a week, at her house and so, a couple weeks after picking out a cage, I get to her place to find her working out. Without missing a beat while running on her treadmill, she orders me to go up to her room, strip, and kneel in front of the bed. Again, this is not unusual for our dynamic. She will typically lay all the items she intends to use for play that evening on the bed, making me sit and stare at them, naked, while waiting on her to finish up what she is doing. She knows it makes my overactive imagination run wild and loves the tease.
I get up to her room and find nothing but the chastity cage we had looked at, placed very purposefully, in the middle of the king-sized bed. As per usual, I strip down, neatly fold my clothes and place them on the nearby dresser before kneeling on the hardwood floor in front of the bed. Waiting there, with the cage on prominent display in front of me, was a bit maddening. Given the lack of any other toy, I wondered if she was simply going to lock me up and send me on my way, or what other plans she might have. Of course, as mentioned before, she wanted me to overthink the situation.
After what felt like an hour, she came up to the room. Per her training, I did not move an inch from my position as she moved around behind me, though I could hear a rattle and the distinct sound of glass being played on a coaster behind me. Finally she stepped between me and the bed, still clad in her sweaty workout attire, tight bike shorts and a sports bra. Stepping forward, she placed one of her bare feet under my crotch, while her other leg swung up and over my shoulder. She had several inches on me, height wise, so it was not a very difficult maneuver and with the leg over my shoulder, she both pulled my face into her lycra-clad crotch, and pushed me down just enough such that my cock and balls were resting on her other foot.
No orders came, so I was to simply kneel there, my face pressed deeply into the crotch of her shorts, breathing in both her sweat and her very apparent arousal. My cock, which was already semi-hard from the anticipation before, was not rigid and pressed into her foot, which she flexed upward, pressing into my cock and balls. It was not long before I was leaking precum all over her foot as she continued to hold me in place, grinned on my crotch with her foot, and started to grind her own crotch into my face.
After a few, blissful minutes, she released me and sat back on the bed. Raising the foot that had been underneath me, she snapped her fingers and told me to clean it. My precum glistening before my eyes made it pretty obvious what she meant, and so I leaned forward and dutifully lapped my own mess from her foot. I figured I might clean her whole foot, licking off the sweat from it being trapped in her socks and workout shoes, but my initial attention prompted laughing from her, apparently being more ticklish than usual today, and so she stopped me as soon as the cum was cleaned off.
Standing, she picked up the cage and dangled it, teasingly, before me before patting the bed and ordering me to get up and lay on my back. As I did she went to the dresser and I saw her retrieve what she had placed there before, a bowl of ice. I had read enough chastity literature to have an idea what that was for. She had probably purposefully gotten me raging hard just so she could watch me squirm under the tough ice. After all, having just been shoved into her crotch, I was not getting soft very soon.
I lay on the bed as instructed and she climbed beside me, with the bowl of ice and cage in hand. Straddling my chest, she lay the bowl and cage down beside my crotch and chided me, playfully, for being hard. She teased that she would have to find a way to make me soft again or I would never fit in my little metal cage; as if she had not been the direct cause of me being hard and planned for it the whole time. Taking a cube of ice, she initially pressed it against the head of my cock, causing me to involuntarily buck and squeal. Knowing her, she probably also knew I would have such a reaction, and wanted it just so she could chide me further.
She told me she could not have me moving so much, and that maybe a little less oxygen would help settle me down. With that she moved her ass backward and lifted herself onto my face. My nostrils were once again filled with the scent of her workout and arousal, with a damp spot in her shorts to match, but now her weight pressed down on my head and there was very little air to come by. Of course, this only made me more hard, but I imagine that is exactly what she wanted; any excuse to torture me with the ice. And torture me she did.