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Cock stuffing, catheter play, penis sounding, penis plugging, and urethral stretching all refer to a form of sexual play and gratification that involves insertion devices for the penis. Sometimes also considered medical fetish, we can only assume that once upon a time many years ago some horny guy was in the hospital and catheterized (when they insert a tube in your wang) and he was like, “Ooooh, that feels so good.” Thus, a new form of masturbation and sexual play was born. There are a few kinds of devices that can be safely inserted in the penis, for our purposes here at allknight.com we will use the following broad terms. Penis Plugs (short length), Mini Cock Sounds (medium length), and Cock Sounds (long length) to group gear of this kind.

Penis Plugs are devices that are to be inserted into your penis through the hole that will travel into the urethra, but generally these devices will be relatively short in length. In most cases, for most men, these would not fill the entire organ if the man was hard. These are usually anywhere between 1 and 4 inches (they can be longer, but just in terms of categorization we are starting to move into the mini-sound area). Often these devices will include ring attachments to keep them inserted in the penis, that can facilitate them being worn for extended periods of time under clothing or naked. The look of these often evokes that of penile piercing rings and jewelry, but without a guy’s penis actually being pierced.

Penis plugs are often considered to be a type of cock ring or penis jewelry. Specifically the kind of cock ring that is worn throughout the day under clothing for the look of it, and also for the feel of it. Not the type of cock ring that you would have sex wearing, as penis plugs are not intended for use during penetrative sex.

Mini-Cock Sounds
For our purposes mini-cock sounds are longer penis insertion devices than penis plugs. If the device still has a ring attachment to keep it in the penis then we might still call it a penis plug, but if it is designed for in/out masturbatory play with no ring attachment (a practice most often called cock sounding) then we likely call it a mini sound. There is room for some overlap here. As we see it mini sounds are up to 7 inches long.

Cock Sounds
Cock sounds can be made in truly long lengths, 10 inches and longer for example. Catheter style play and cock sounding can travel all the way through penis when very long instruments are used, and the device can even reach the bladder. It is possible even to massage your prostate through cock sounding (an advanced topic, requiring a fairly long sounding rod). Wherever an instrument is longer than 7 inches we will refer to it as a cock sound.