You're gonna diaper up and wear a mask while out with a buttplug in. You're gonna go to a nice place to get a soft pastry like a few donut or cupcakes and a nice, large drink. Drink all of the drink before moving towards the toilets. Your task is to shove as much of your food as you can up your ass. You might want to be plugged beforehand just to leave you stretched and make it a little easier. Once it's all in, put the plug in your mouth underneath the mask no matter what the state of it. Head on home! Once you're home, push out the pastry into your diaper and pee if you haven't already. Sit in the mess for a good half hour to make sure it's all out before taking the diaper off and fishing out the pastry on all fours with your mouth. If you can eat it all, congrats! Otherwise you're just gonna have to repeat the same dare each week until you get it right.
Let me know if you need anything changed/what you think!