I raised an adult daughter. It was just me and her most of her life. This is my first serious BF with kids.

My BF has 3 kids he gets 50/50 with a narcissist BM, 10 yo girl, 6 & 17 yo boys. 

BF bought a house recently and we are preparing to move in together. We've been together a yr and the kids LOVE me (BM different story lol) and I love them as well

So the current situation - the court order is no overnights unless engaged or married (BM does whatever she wants, but usually dumps the kids to her parents on weekends)