To ask when you started to.....

[HippyHappygal]

Refer to your partner as a part of your family?
You both have kids but not together.

Not sure I would at all unless we were married to be honest.

Really? Interesting to hear others thoughts

My partner of 14 years is my family we have a child each, teen and adult love our family and the rest of our family see no difference a piece of paper doesn't make them family what he has done for us/me counts more .

Once the relationship is solid I guess, probably around 2 years (for me).

Sorry to answer the question was welcomed and 'family' from almost the start!!

When the DTwatCats started treating him as part of the furniture.

Once they saw him as a fixture or fitting, it was a short time after that he proposed. So about 3 years.

When you live together.