I dont know if this is the right sub, but I'm not sure where else would be good to ask. If not allowed I'll of course delete this.

So I (F24) love anal, and I pretty much have anal sex or play everyday or every other day. I am by no means new to it whatsoever. I am exploring more and more, and I really want to be able to gape, or hold my gape open if that makes sense. And I feel like no matter how much I practice I have no luck, my butt just closes immediately or after a few seconds. My biggest plug is 4.5 cm in diameter at the widest point, and I can wear it for hours and still no luck. Do I need to get girthier dildos maybe?

If anyone here has any advice or experience in gaping I'd really appreciate hearing it! Thanks!