Pinkie pie has finally decided after foal sitting for the cakes that she wants to have a foal of her own but she doesn't like stallions so she finds another way to get a slightly larger foal. On a bright summer day twighlight walks out her door to have a letter thrown on her delivered to her by pinkie.though twighlight already has a good sense of what the letter is about she ask pinkie any way. Pinkie what's with the letter? It's a surprise party says pinkie while she is jumping up and down with a goofy grin on her face. Twighlight smiles and ask who is the party for? It's a surprise silly says pinkie as she hops of into the town. Twighlight opens the letter to see where and when the party will be. As she walks into the library spike ask what she has.its a surprise party invite from pinki it starts at 11.00pm and it's at the front of the evergree forest. Spike wonders why he didn't get a invite but passes it off as he has to much chores to do anyway. As the day moves on twighlight starts preparing for the party though she decided not to wear a dress since pinkies parties are usually messy and wild. As twighlight walk towards the forest she feels weird why no pony else is even out of there houses usually pinkie invites all of equestria. When twighlight get to the front of the forest a hoof is placed infront of her mouth and there is a cloth covering her nose and mouth. Twighlights starts getting sleepy trying to scream for help and the last thing she heard before falling to sleep was don't worry little one mommy will make you smile alllll day. twighlight starts to wake up she feels very tired almost weak. Her thoughts start to scatter to the last thing she can remember those words mommy will make you smile allllll day sounded like some pony she knew. As she tried to sit up she noticed for the first time that she had a lot of padding around her but and that she was sucking on a dummy.she looks down to find at she is waring a huge diaper! And to make matter worse it's used. What how uggg I'm a full grown mare I could have messed my self like a little filly could I? No it isn't possible think twighlight think. Ok I'm in a pink room that is full of over grown filly items to my left there is a wooden chest full of toys and to the right what seems to be a huge changing table. As twighlight starts looking around the room she feels pressure start to build up in her bladder. For the first time since she got her twighlight decided to try and look for help. As she was climbing over her crib pinki pie bounces in the room and smiles with her head titled sideways. Oh thank celestia your here pinkie I don't know how I got in this diaper but can you help me get it off twighlight ask as her cheeks blush as red as apples. My my silly filly you have it all wrong you are only a little filly that must be kept in diapers in case you have an accident look at your diaper now. What do you mean Waite did you pinkie stop this right now it is not a funny joke. Silly twily your right about one thing this is not a joke you are my filly now and if you try to escape that little device on your horn will shock you and knock you out. Now why doesn't mommy change you would you like that twily would you. Pinkie what is wrong with you I'm not a filly and your not my mommy. Shhhhhh baby your just cranky because you had an accident . Twighlights horn lights up for a teleportation spell but right when she was about to finish immense pain comes from her horn and shocks her. The shock was so painful that it nicked her out but not before she released her bowels. Pinkie pie just watched as Twighlights diaper started to get even bigger then it already was. Pinkie un dose the lock on the crib and carries twighlight to the changing table. Once she finished changing twighlight she gets prepared to have a little fun with her little dose twighlight know she will be getting very little sleep done in the next few days