Assuming you are into this, what’s the best way to make yourself gape? The first thing is to completely empty your bowels. After hitting the toilet, perform an enema if needed to make sure that the bowels are totally empty.
Read: The Beginner's Guide to Anal Stretching
Relax! Try massage, hand sex, oral, music, or whatever makes you as comfy as possible. Any sort of anal sexual activity pretty much requires this level of relaxation to be pleasurable. Do whatever you can to arouse yourself. Take your time to combine arousal, relaxation and anal play for an extended period of time. Don't forget a generous amount of lube.
Now that you are relaxed, turned on, and lubed it’s time for anal sex. Start by having the receiver getting into the doggy position on their hands and knees. When it comes to backdoor play, lots of lube is important. The wetter, the better.
The next step is to put progressively larger items in your anus. Begin by inserting a lubed finger. Take the finger in and out, twirl it around from small to larger circles. Now, use a small butt plug using the same motions as the finger. Finally, graduate to something the size of a cock. Now that the hole is widening, engage in some extended anal sex. Pull in and out using circular patterns as before.
Read: How to Use and Anal Training Kit
This type of play fools the outer and inner sphincter into believing that the bowel is full. When you are aroused, relaxed, and have had some backdoor fun you will have tricked your anal canal into thinking something is in there. An inner sphincter that feels filled will open up like a blossoming flower!