Othwr than it being a paste, i would prefer the C-string, but with the c-string, i would bend the "back strap" (part that lays in your butt crack) up alottle and slide it up my ass, maybe even figure anway to slips a buttplug down onto the wire, then insert into my ass.
I have tried wearing a C-string but really didnt like it, because I was constantly having to adjust it. Then my husband found the pasteaze web site and joked that I should try them. So I ordered 2 sets which were 3 pieces each. And when they came in I tried it at home before wearing it to the beach and was surprised how well it stuck. I wore it all day with out issues, only thing it was actually a little bigger than I wanted so I trimmed it down to about 1 wide which I prefer also I went topless. So the next time we went to the beach which was not a nude beach I had it on under my G-string. So after our initial observation of the beach crowd I stood up and asked my husband if he wanted to go in the water and as he was getting up I removed my G-string and shocked him because I didnt tell him I bought the pasties and we went for a swim and I felt so naughty being practically naked on a public beach and having people watching me walking by.
I also forgot to mention that while wearing the pastie the beach patrol came riding down the beach as we were walking back to our blankets and stopped me thinking I was nude because someone had reported me as being nude on a non nude beach. But after they saw I was technically covered they went about their way without incident. So after the scare I felt much more comfortable and continued my day.