Do over story line. Guy goes back to being a teen makes it with his sister and several others then finds out his sis is a do over as well.
Do over story line. Guy goes back to being a teen makes it with his sister and several others then finds out his sis is a do over as well.
Sounds a little like T.R.E.S by Paul Phenomenon & Ms. Friday. Although it isn't actually a do over.
It is a premier only story, but very good.
https://storiesonline.net/s/44760/t-r-e-s
https://storiesonline.net/a/Paul_Phenomenon
https://storiesonline.net/a/Ms_Friday
"Building a Better Past" by Tendertouch fits the description, but the main characters are step-siblings (no blood relation at all).
https://storiesonline.net/a/tendertouch
https://storiesonline.net/s/60750/building-a-better-past