Your ABDLmom D-perv wakes you up from your nap & reminds you that she's leaving for the weekend and that your step-sis Mae Ling has to babysit you during that time. your wife calls Mae into the room and tells you her plan but she's not too happy about having to babysit her adult-bro who loves to regress & wear diapers. First thing is how to diaper check you & D-perv goes over that in detail. Then it's bottle time & d-perv gives you formula. She knows you always need to mess after your bottle and indeed you do! You push our a nice big mess in your adult diapers while D-perv encourages you enthusiastically and Mae is making faces behind her back. Now it's Mae's turn to learn to change your messy and wet diapee, which she protests at first! Finally she relents and proceeds to change your messy full diaper as mom supervises & teaches her how to fluff up your new diaper, wipe your tushy and powder you. Mae makes a lot of "stinky" faces as she does so. Afterwards, Mae uses a sharpie to write something mean that only a big step-sis would write!