Hi & a question

first of all want to say hi as this is my 1st post,

I have numerous Aneros and have used with success over the last 2 years or so thanks in the main the valuable info on the forum and can acheive what I believe is the super O.

I have never felt the need to post a question before as all are answered pretty much already, but here goes.

I have of late found it very difficult to keep the Aneros in as it keeps popping out as the contractions start?

It does not seem to matter which model (MGX, SGX, Peredise) as I approach the crucial stages it is near impossible to keep the damn thing in place. This never used to happen and is now getting in the way of my enjoyment with it????

Does anyone else experience this or have any tips for controlling

It always happens just at the moment where I feel I am going to ejaculate (but don't) which is normally my first sign that it is going to be good ride and the beggining of imense pleasure

hope someone can help

Thanx