This is a rendering of my custom Cherry Keeper. Notice the sharp taper. Also notice the wide headlock that will keep the head of my penis “locked” inside the cage.

Josie Lynn, inventor of the Cherry Keeper chastity device completed my custom design. I ordered one made for me by Shapeways and it should be in my hands by the 15th of this month. I’m excited. Over the years, there have been very few real innovations when it comes to male chastity devices. In the 1990s the CB 2000 was invented. It was the first base ring chastity cage designed for the mass market. While there were a few base ring devices out there, they were mostly cobbled together plumbing supplies. The CB 2000 was the first of its kind.

Over the years, many designs have come out. They range from very simple cages like the Jail Bird to elaborate titanium works of art. However, they are all essentially the same thing: a tube or cage designed to contain and restrain the flaccid penis. While the Cherry Keeper looks very much like the others, it can be ordered with an amazing innovation.

Instead of being a container in which the penis essentially floats free, the Cherry Keeper can be ordered with a headlock, a shelf inside the cage that holds the head of the penis tightly against the front of the chastity device. Josie Lynn markets this feature as a form of chastity device security. He claims it makes pullout much more difficult. I have a completely different view of this innovation.

I realize that different men have different criteria for an excellent chastity device. I have two requirements that must be met. The first is comfort. I need to be able to wear the device without suffering pain or chafing. The second is convenience. The principal convenience attribute for me is the ability to urinate standing up without fear that I will be spraying urine. It should be easy for me to stay clean and odor free.

penis head
You can clearly see that the head of my penis is larger than the shaft. Yes, this is my hard penis, but the difference remains when flaccid. It’s just easier to see when erect.

The Cherry Keeper headlock feature is a shelf around the inside of the cage that reduces its diameter. The human penis head is wider than the shaft below it. This serves a very useful purpose in nature. It provides a sort of seal that assures sperm will travel the right direction and not leak out before it has a chance to get past the cervix. If the headlock shelf is narrower than the head, and the head is forced past it, it will rest on that shelf and not withdraw back towards the body from time to time.

Until now, I’ve attempted to get the same effect by obtaining cages that are only 1 inch long. That inch barely contains the length of my penis head. The rest of my flaccid penis is pressed back against and into my body. This, hopefully keeps the head in firm contact with the end of the cage and centered in the opening for the urethra.

It sometimes works out that way. My 1 inch Jail Bird keeps the head of my penis firmly in contact with the front of the cage but my urethra “wanders” and generally ends up straddling one of the bars on the side of the center opening. That’s a recipe for disaster. If I don’t take a Q-tip and re-center my urethra, urine will spray everywhere.

By itself, the headlock doesn’t guarantee that my urethra will remain centered. However, the design of the cage can encourage urethral good behavior. If you look at the illustration of my custom Cherry Keeper, you’ll see that the cage tapers sharply at the front. This sharp taper wouldn’t be very good in a cage where the penis is free to withdraw into the body. In fact, it would almost guarantee that the end of my penis would never get to the end of the cage. However, once I force the head past the edge of the shelf (headlock), it has no choice but to fill the full space allotted to it. The sharp taper should make urethral wandering difficult if not impossible.

In fairness to the stock Cherry Keeper, my urethra remains firmly centered against the opening in the head of the cage. The design of the cage is the best I’ve seen so far for male chastity devices. I’ve been wearing it since it arrived. It’s completely comfortable and I haven’t had to adjust once.

The physics of chastity cage design are very subtle. Simply by looking at it, I can’t see any reason why this device works so much better than the others I’ve worn. But it does.

You’ll hear more about my custom Cherry Keeper once it arrives and I’ve had a chance to wear it for a while. In the meantime, you might want to look into trying one of the stock ones yourself. Please let me know how you like it. You can find the shop here.

Lion thinks he knows what he wants. He says he wants me to punish him when he annoys me. First of all, if I did that in the current climate, I don’t know if he’d ever not be punished. That’s obviously hyperbole. I think his punishments would increase at least twenty five percent.

Case in point: we had to take his car in for an oil change. My Saturday off is spent  doing something I don’t want to do. I know he doesn’t want to do it either and I’m not a child. I know adulting is hard and you have to do things you don’t want to do. But it’s just another thing in a long list of things.

We got to the lounge area and found some seats. I told Lion to sit and that I’d be back in a few minutes. I was going to drool over a Tacoma sitting in the showroom. I had one some years ago and I wanted to get a newer one but Lion convinced me to get a Ford F-150 which I was happy with until he convinced me we needed a F350 diesel. Anyway, I wanted to see the updated, updated Tacoma.

When I got back to the lounge area, Lion was still standing. Didn’t I tell him he could sit. He was concerned I wouldn’t be able to get past the coffee table to sit so he waited. Considerate, but annoying. How long would he have waited?

I told him I’d been drooling over a Tacoma. I said I didn’t sit in it because then I would have wanted it and I would have had to trade his car for it. He said his car is registered to him. No concern for whether I was serious.

At this point, I’m of the mind that Lion gets what Lion wants, or at least what Lion needs. Maybe that’s not a fair assessment. Maybe I’m just allowing myself to continue to be frustrated by work and home. But that’s my perception right now.

So should I let Lion get what he wants again? Should I give him what he says he wants? Should I punish him when he annoys me? Can either of us handle that?

Im going back to drool over the Tacoma.

[Lion — I’m fine with more punishment, not because I want them but because Mrs Lion will be directly communicating her feelings. For the record, I was teasing about the registration.]

bruised lion bottom
Bruised Lion bottom.

Thursday is one of our punishment days. Mrs. Lion rarely uses them by reserving punishments until Monday, Thursday, or Saturday. Nowadays she’s much more likely to punish the same day I break a rule. Thursday night I was spanked for spilling on my shirt. I’m not sure which spill was covered since I made three slips within the last week. It doesn’t matter. The offense was the same each time.

spahing spoon on lion's butt
(Click image to view larger)

This was the second night in a row that I was spanked. It’s part of Mrs. Lion’s new serial-spanking policy. When she came out with a paddle (the spoon -shaped heavy wood model), I groaned inwardly. The spanking I got the other day had a mildly erotic flavor. That was because I hadn’t been spanked in a while and I looked forward to the sensation. Thursday night wasn’t erotic one little bit. I just couldn’t wait for it to be over.

Mrs. Lion started out with bursts of 10 or 11 swats to each cheek. She focused them on the small “sit spot” she favors. You know, it’s the area just below the crease. I have no idea how many rounds of swats she administered. I was yelping by the second round. It kept going on and on. Finally, she started applying single, very-hard swats to different spots on my bottom. I wanted to escape. It took everything I had to stay in place.

Those isolated, very-hard swats produced bruising. That was what Mrs. Lion wanted. Finally she was done. She went back into the guest room to return the paddle to its place and came back with the rough matting normally covering my punishment stool. She had me raise my body and she slid the coconut matting under my bottom. I slowly lowered myself on it feeling the sharp bristles digging into my tender, bruised skin.

I had to remain in position with my weight on the matting for what seemed to be an endless period of time. In actuality it was probably between 30 and 45 minutes. Finally, when she let me move the matting away, it felt like my bottom was corrugated by the sharp coconut mat. Yesterday morning, I had numerous tender spots on my rear.

I still have several daily installments to go for my serial spilling. By the end of the weekend I won’t be sitting comfortably. I’m not complaining. I’m just reporting. It looks like Mrs. Lion has discovered the best way so far to punish me.

My health has been steadily improving. One of the reasons I’m spilling more is that my coordination and balance were affected by the surgery I had in March. I’ve been told it can take up to a year for me to fully recover. However, I’m finally at the point where I can walk steadily without too much wobble. I’m going to begin physical therapy next week to help hasten my improvements.

Lest you think it is unfair of Mrs. Lion to punish me for slips caused by my surgery, I specifically asked her not to cut me any slack. We both need the FLRD to resume full speed. It’s a fortunate side effect of my surgery that I am spilling more on my clothes; it’s helping us continue our growth.

I’m still wearing the Cherry Keeper chastity device. My urethra remains nicely centered. Mrs. Lion took it off last night for a teasing session. I couldn’t get to the edge but certainly enjoyed the attention. Once finished, she put the cage back on.

penis skin overflowing cherry keeper cage
son you can see how some of the skin from behind the head is overflowing the back of the cage.

The fit isn’t perfect. Due to the design of this particular chastity device, the cage may be a bit short for me. Some of the skin from just behind the head is overflowing the back of the cage. It really should be contained inside. You can see what I mean in the picture, left.

I’m working with the designer for a custom cage that will continue to keep my urethra pushed forward and centered while covering the penis skin shown in the picture. My other cages don’t do this. It’s a matter of how the cage is angled and how it relates to the base ring.

I believe the Cherry Keeper orientation is very good. The question in my mind is whether a longer cage will permit the head of my penis to recede into the cage. The designer plans to reduce the diameter of the cage to the actual size of my penis head. I supplied detailed measurements of diameter, length, and circumference to assist in the design.

Because this device is 3D-printed, it’s possible to refine the design in any way imaginable. The possibilities are endless. I’m going to hold off the full review until we have a final custom design. I want to say that there is absolutely nothing wrong with the standard Cherry Keeper models. The design is absolutely solid. The cage I’m wearing now, as shown in the picture, is completely and comfortably functional. I just want to take advantage of the 3D-printing capability to build something 100% perfect for my penis.

If you’re interested in trying one of these, I strongly urge you to resist ordering it in color. Colors are just a die on the surface of the nylon. They will rub off. White is the color of the material itself. This material is a medical-grade nylon suitable for use in implants. It has a 300° melting point, so it’s safe to be cleaned in hot water.

Each cage is available in two quality levels of material: standard and premium. The premium is nearly twice as expensive. Actually, both are the same exact 3D-printed objects. The difference is that the premium finish has been tumbled with abrasive ceramic balls. This tumbling smooths out the rather rough surface 3D-printing produces. I can’t wear a device in the standard finish. It irritates my skin enough to make wearing extremely painful. So far, the premium finish is not bothering me a bit. It looks and feels a bit like an eggshell. It’s not shiny-smooth but it is smooth enough to avoid abrading me. If you’re interested in trying a Cherry Keeper. click here to go to the website. You will be taken to the Shapeways shop of the maker. You are ordering the device directly from the 3D-printer. Shapeways is the biggest, and in my opinion, the best of these public printing companies.

I wonder if enforced male chastity is becoming less of an oddity. It’s hard to tell based on the Internet. Popularity of chastity sites says less about how many people are interested than how good a job search engines are doing pointing people at our particular kink. In any case, I think there is progress being made in producing wearable chastity devices that are comfortable and do the job.

Many of the mainstream off-the-shelf and custom devices are made by people who don’t necessarily wear them. Until very recently, to get into the business of making and selling male chastity devices, you either had to have the special metalworking skills needed to build cages or the design skill and the financing required to create injection molds. The plastic chastity devices are all injection molded. 3D-printed devices are just now beginning to appear.

If you have any experience in computer-aided design, or are willing to learn, you can now become a chastity device maker. Shapeways and other similar companies make it easy to interface your design with their systems. It’s relatively inexpensive to get a design printed. If you are just paying Shapeways, for example, a typical cage and base ring would cost around $50 in the premium finish. That’s inexpensive enough to allow iterative design to perfect a new device.

I think we will see more and more new devices coming out of 3D printers. This is a very profound change in the evolution of male chastity. Before 3D printing, chastity devices had to be built obeying rules that have nothing to do with the male anatomy. For example, my Jail Bird had to be made with a relatively crudely shaped cage. It’s round and tapers toward the front. It can’t taper too much because it would become impossible to polish the metal in a too-narrow space. A lot of compromises have to be made to permit efficient manufacture.

Similarly, products like the CB-series and Holy Trainers have to be designed to allow the injection molds to properly eject the plastic. The same is true of any other metal or plastic device. 3D-printing, on the other hand has no such limitations. Almost any shape you can imagine can be printed. There are rules in terms of thickness of material that must be followed. But, it’s no problem to build a cage shaped exactly like a specific man’s penis. The custom cage I get should precisely conform to my anatomy.

It won’t be perfect since it’s based on dimensions I provide. If more accuracy is needed a 3D-rendering can be made from a series of still photographs taken of my cock. I doubt that will be required. The point is that with a little patience and some design skill, it’s possible to build a device that will be perfect for you and you alone. I consider that an irresistible challenge.

I’ll keep you posted as we make progress on the new Lion Cage.