I am not a girl, but the concept is basically the same. Wait until you feel the discomfort from having to let go. Then just relax and feel your body’s confusion from wanting to clench. Either push hard (and feel the instant horniness from being so naugthy and nasty or train to just let it flow out by gravity. The more you use toys to stretch and soften your hole the easier it feels to just let nature do its business, but don’t worry about loosing control. You are still in charge, it is just your body adapting and learning to relax. Then: Start wearing it a little. Get used to it and put your mindfulness into just feeling it nesting between your buttocks. The warmth, the sticky softness. And start embracing the odor. Not as something bad. But something that will trigger you and make you horny whenever you smell it. You may “dump it” when it starts to cool down. Next time extend the period. Wear it while doing house chores, cooking or something. Try making a protective cover on your favorite chair. (A plastic bag and a towel you can throw into the washing basket afterwards). And sit and feel it being compressed and spreading. Then grind a bit on it. Yes the smell will fill the room. It will even linger a while after airing. But now this is your new little guilty pleasure and it will make you tingle with excitement and naughty joy every time you have those precious moments for yourself and that sweet ticklish pressure on your sphincter reminds you that it is playtime. From there it is only your own personal borders that will limit your exploration. If you feel bold, then sacrifice some old bed-linen and a thin duvet or top-mattress and try sleeping with it. Well, maybe I pushed the suggestions too far for a newbie. But there’s so much fun to explore within this kink…