As her mother left you feel compelled to make some mischief. "I wish my sister was the same age as me and that mom needed to use diapers just as much as Emma." You feel the diaper worm up and cool off, as it does you see your mom's red panties and see them inflate in to big pink. You smell a odd smell from your mom's new diaper "Oops looks like I pooped my diaper agean I will be right back my babys."
When mom left you were board and wanted to have some fun so you diside to be noughty "I wish that my sister was horny for me and mom thought that it was normal for us to have... fun." Soon your diaper warms up and your sister is moning with plesher. When you get close to Emma she lunges herself you and starts to give you a kiss forsing her toung in you mouth and swirls your toung with hers. When you over the inshallah shock you embrace her starting to rub the front of her diaper. "Yes. Please keep going."