Can’t insert far at all

Hi guys,

I just bought an MGX, my first backdoor toy ever. I tried two times today, each for 1~2 hours, it seems like I just can’t insert it far enough for the perineum tab to touch my perineum at all. It’s almost a knuckle far way.

It’s probably why I didn’t feel anything. it felt like the toy went in a chamber, then stopped at some kind of wall. I tried to push it a bit, and was able to get very slightly further, and I just felt like I wanted to poop. Wasn’t able to get further anymore.

Any tips? I was using the “lay on side” position…