Expel air and give it some time.. I've seen videos of people able to take the whole " without any issues Assuming you are clean you may find a gusher of mucus within an hour, especially if you are up and active. Yes, being able to open up and let air in is excellent way to help with getting the spincters to relax. Warmed up the tip of cone and folded it backwards leaving a big pocket into which I put a 3x15 dildo.
Athena. Age: 29.
The only reason I want to take it to the full 11" with this dildo, is
Naya. Age: 26.
OP: Deep Anal Penetration
As you know muscles can't be stretched, so that makes it all about relaxation. Please go slowly and learn how to control your muscles. It's important when moving larger to always use internal muscles as if you were expelling, it will help with all sphincters.