It was 11:30 on a Saturday night, and Mandy had just released me from the cage. I quickly showered, and was keenly looking forward to my regular Saturday night of passion with my sexy wife. I slipped into bed beside her, and my freed cock responded even to the simple touch of her warm skin against mine. Mandy smiled softly, and slid her hand down to my crotch. My hypersensitive cock rippled as her warm fingers encased it, slowly stroking it into full potency. I gave a soft moan and closed my eyes.
“Mmm…” Mandy hummed, “You get hard so fast these days, babe. Keeping you locked up for me was such a good idea, hmm?”
I nodded silently as her strokes sent fireworks through my loins.
Mandy slid slowly downwards, and I knew it was only seconds before she took my emancipated cock into her warm, wet mouth. She kept stroking me as I felt her breath caress my lower stomach, I closed my eyes and waited in trembling anticipation to feel the first touch of her moist lips and tongue.
"You know what?” Mandy suddenly announced. “I think your cock's shrinking, babe.”
My eyelids snapped open at my wife's abrupt statement. I looked down to see her brows knitted, her pretty face a picture of concentration as she studied my penis intently.
"Huh?" was all I could manage to blurt out.
"I think your cock is shrinking,” she repeated, not taking her eyes away from my erect tool. “I mean really shrinking. I'm sure it used to be bigger than it is now. Do you think the new chastity cage is affecting it?" Mandy glanced up at my face. Her question startled me.
"Jesus,I never thought about that," I replied honestly. "I guess that having it locked inside in that short cage six days a week for so long might be having some effect, maybe."
Mandy pondered for several seconds. "Let's make sure first. Remember we measured you last August, and you were a little over six and a half inches? I'll measure it again."
Mandy arose and exited our bedroom. I took my penis between my fingers, examining it with quizzical eyes. Jesus, it did look a little smaller than usual! My wife shortly returned clutching a wooden ruler, and knelt on the bed beside me.
“Stroke it totally hard for me, baby,” she said. I did as she asked, and once I was fully erect she pressed the ruler lightly alongside the length of my cock and measured.
"Hmm..." she mused. "Just over five and three-quarter inches. I was right - It is shrinking!"
My eyelids flickered again. “That can’t be right.” I muttered.
“See for yourself.” Mandy replied. I glanced down to see that she was indeed measuring correctly – holding to ruler along the upper side of my cock, and measuring with the end of the ruler pressed gently to the pubic bone. I could clearly see that the tip of my erect tool reached a fraction over the five and three-quarter-inch mark. I had lost almost three-quarters of an inch in length since last August – only five months ago! What the fuck?
“Jesus Christ!” I hissed. “It must be that fucking cage!” I glanced at Mandy and added: “Or - or maybe I've gained a little weight. Yeah, I remember now. I've read that any weight gain means more fat above the pubic bone, which makes it seem like your penis is smaller. Yeah, that's right. It’s an illusion, it’s not really smaller, it just looks like it is..." My voice trailed off as I realised I was practically babbling.
Mandy shook her head firmly. “Nope. You haven’t gained any weight at all since August, babe. You've been wearing a pretty constricting chastity device for the last six months, six days a week. I think that having your cock compressed like that for so long has caused you to lose a little length, and maybe some girth too.” She wrapped her hand around it again, as if to gauge its circumference. I felt my face redden.
“Well, that’s it!” I grunted. “I'm not wearing the damned thing anymore!”
Mandy was watching my crestfallen face, and I could see the wheels turning in her head. Her lips slowly curled into a crooked half-smile.
“Do you really want to stop wearing it, babe?” she purred, “I like you wearing it for me. It gives me a thrill seeing you locked for me. And you enjoy me having total control over your dick, don't you?” Mandy moistened a fingertip and placed it against my frenulum and softly rubbed it, sending sparkles of pleasure shooting through my loins.
“Well, yes,” I replied with an effort; her fingertip was working magic. “But... but...” I glanced at the ruler she was still clutching.
“I think you should keep wearing it, babe,” she said unctuously. “Keep your cock locked for me in that tight little cage. What does it matter if it's making your pecker a little smaller? You've always wanted to be my little needle-dick, haven't you? If you keep wearing it, you might start being exactly that – my little needle-dick.” She sent me a sexy grin, tossed the ruler aside, and began stroking me again.