Here it is!

This is a mod that aims to add new custom family relationship bits. Right now, there are two all purpose relationship bits that are indistinguishable from Maxis family bits. The two new bits are:

Distant Cousin (for when Distant Relative stops tracking)

Considered Family (all purpose)

Both new bits are blacklisted for romance (similar to my No Romance for Extended Family Mod) and both have an affordance for Hug Lovingly. Both can have family dynamics, and both show up in the relationship panel under "family."

To add a new bit, click either the relationship panel or the Sim on the lot. You'll see a new pie menu under Actions.

Once these bits are added, these Sims can be added to dynasties like any other family member. They can also be freely added and removed.

The mod also includes Distant Relative. This is a Maxis bit. The reason I included this is because unless a distant relative is added to the family (or created in the family), it doesn't manually track. However, adding Distant Relative to a Sim that isn't actually one will result in it being removed.

Download (free). Technical stuff under the cut