**** 1 year after chapter 1 ****

Rarity stared out the narrow bathroom window of her parent’s house with growing interest. Being on the ground floor allowed her to look directly out onto the side yard of the property, it wasn’t particularly wide, and was bordered by a weathered and sun bleached wooden post and rail fence, the kind more commonly found further south in the prairie lands. But beyond that was two hundred meters of open grass and young trees to pass through before arriving at the nearest house, making the property seem considerably larger than it actually was. As pretty as the small yard appeared with its beds of lush hostas and ferns, none of this was what had caught Rarity’s undivided attention.

Just after she had slipped on a cute red thong over her wet diaper and just before a shiny black pvc skirt that barely hid said diaper was planned to be put on, a young filly had appeared outside the window. Rarity had known that Scootaloo was planning on coming over this morning thanks to a quick word from Sweetie Belle, so apparently, she had arrived. Scootaloo, as much as the filly resisted admitting to it, was quite cute, in a tomboy sort of way. She was wearing a pair of light faded denim overalls that looked a size too small to Rarity’s trained eyes and that came no farther down her legs than short-shorts would have. Under that was an even tighter orange t-shirt which Rarity could see ended a good five or six centimeters short of her waist line. The outfit did quite a lot to cause Rarity to reminisce about the kinds of outfits she had Scootaloo wear years ago when she was getting the young filly into diapers in the first place. Scootaloo had her mane cut short for a filly, so it was never more than five centimeters long. It gave her something of a pixie look that Rarity found rather attractive. However, what Rarity found most interesting was the way in which the butt and crotch of the overalls were stretched tight over what was underneath.

A diaper, she could easily tell, and a decently thick disposable one at that. She could see it was disposable because a bit of white plastic was poking up above the side of the overalls. Scootaloo obviously wasn’t too interested in keeping her diaper a secret from Sweetie Belle, or Applebloom for that matter, who had arrived through the front door not ten minutes ago. Rarity hadn’t heard anypony coming through the door since then and could only assume that Scootaloo had just arrived and was heading towards the side yard.

“Why would she go that way?” Rarity mused to herself.

It was much faster to go through the house and Scootaloo knew she was welcome inside anytime. Rarity’s question was almost immediately answered when Scootaloo stopped and without looking around too much, thankfully for Rarity, spread her legs and turned around so her bulging butt faced Rarity. Rarity could see Scootaloo straining slightly and thought she caught a hint of motion, a slight expansion between the legs, under the tight overalls, though it had been hard to tell. Keeping her legs apart but bending upright again Scootaloo proceeded to place a hoof on her crotch and close her eyes. She must have stayed like that for nearly a whole minute before opening her eyes and looking down at herself. She rubbed her crotch a bit and patted her butt, then went over to a small ornamental cement garden bench and sat herself down on it with a little plop. Her eyes immediately closed again and as she smiled she scooted her butt back and forth several times while leaning back with her hooves out behind her, keeping her upright. Rarity knew exactly what the filly was doing and as a result had become quite hard in her own diaper.
When Rarity looked up from her brief glance down to the bulge in the front of her soaked diaper she found herself staring right into the purple eyes of Scootaloo who was looking at her across the narrow yard with a slightly embarrassed expression on her face and a bit of an awkward smile. Before Rarity had a chance to react Scootaloo stood up swiftly from the bench, a slight blush on her cheeks, and walked off confidently towards the back yard while brushing herself off.