I'm looking for a specific au where Jensen was going to marry Jared sister but finds out it was just for his money. He leaves her w/o knowing she's pregnant. Years later she gets arrested and Jared gets custody of the twins, and finds out he has cancer but doesn't tell anyone. He decides to take the kids to Jensen so the kids have some where to go when he dies. Jensen doesn't trust him and just wants his kids and for Jared to leave.

That's all I can remember, sorry but if any one could find this or others like this (one of them secretly really sick), it would be greatly appreciated. :)