Thin adult briefs and butt plugs/anal plugs.

It seems like every adult brief for those even with very, very light leakage, are filled with bulky absorbent material. And, yes, rightly so. What good is a moisture barrier if it cannot hold a cup of urine, right? But thankfully, I don't need one for incontinence, but rather when wearing a nice big anus stretching, rectum stuffing butt plug. Now, for anyone who enjoys wearing a butt plug when out and about, you know that one must have a proper amount of lube while in “there”. So, for larger silicone plugs, that require more lube than let's say an nJoy 2.0 (in which case saliva will do for insertion and retention).

I would like to know if there is a very thin almost like women's panties, that have little or no absorbent padding. Perhaps disposable briefs with only some flocking on the inside to absorb just a couple of spoonfuls of moisture. Just something to prevent a lubricant stain from appearing on my pants, but without anything bulky at all. Anybody know of very comfy under briefs that are just a moisture barrier, without any pads?

You can purchase something like a pocket diaper like Threaded Armor it is a waterproof shell that can have as much or as little absorbency added to accomplish your task.

there are also tons of varieties of minimally absorbent period panties that are washed and reused as needed they normally will absorb a few teaspoons of fluid so leaking of excess rectal lubricant shouldn’t pose a problem.