u/Marriedman82

A little while ago I bought two glass plugs, one 2.6"dia 5.5"long and another 2.9"dia 6.3"long, they were too much of a step up from my 2.5" soft silicone plug. So, I ended up getting a 2.3"dia 4.1"long glass plug too, I have worked up to the medium size glass 2.6"dia but I'll get to that in a second.

What the issue is when I tried the smaller glass plug, as soon as I stood up I felt go all the way in. In a panic I was able to retrieve it, which makes me concerned to try again. Then I tried the 2.6"dia one thinking it's wider and won't get sucked in. It took a bit to get in but everything was good. I cleaned the smaller one, walked to the other side of my room to put it away and started feeling this one go in. I removed quickly and found the base was half in and half out.

What am I doing wrong? Plenty of people reviewed these plugs and not one mentioned this issue, is it just me?

Edit: I've included a pic of the plugs in question on my profile.