Author's Note: This is Part 4 of a story I attempted to write from the point of view of the three main characters, all speaking in the first person. I'm grateful to my editors, Angry Barcode and slutkimmi for their assistance. I believe the story should be read in sequence as it was written.nnThis is a work of fiction, the events described here are imaginary; the settings and characters are fictitious and are not intended to represent specific places or living persons. All characters are over the age of eighteen, at every point depicted in the narrative.nn*nnSomehow we made it through another year's holidays. Having Erica over turned out to be a good thing, she and Sherry got along well, and despite this weird vibe that was going down in the atmosphere around us things were just hunky-dory as far as I was concerned. Sis went back home without things ever coming to a head, if you know what I mean. nnThen a couple of weeks later I got a call from Erica. She wanted to pull up her roots and move back to our state. She said she missed the family, she liked the way we seemed to have everything going on in the old home town and everything. I was happy that Sherry was on with the idea; she and Sis seemed to get on like a house on fire, and naturally I was okay with the idea. We agreed to put her up for a while until she got her feet back on the ground.nnWell things seemed to pick up real fast from where they'd left off during the holidays. The other afternoon Erica was in the bath, and I had to go real bad. Finally I couldn't hold it anymore, so I told her, "I'm coming in! Just keep the shower curtain closed." But the shower curtain was open just enough and I could see Sis in the mirror. I could practically see her entire naked body, but it didn't look like she was looking at me.nnI finished pissing, then while I was shaking it I started getting hard so I started stroking myself to the sight of my sister's hot body.