I'd have to with A as well. It hasn't happened as of yet, but my kiddos are all tween - teen aged and while they know of my OSO haven't had a chance to meet him in person. It's long distance but they have gotten their little faces in while skyping and have texted and all of that with him. There's few people I could see myself leaving my kids with but I think at this point and at this age they are well aware of who are parents and who are adults to respect and listen to when in charge. Not to mention my OSO is so NOT interested in taking on a father role at all. Supplemental or otherwise.
Me: Late 30s pansexual poly.
DH: My husband of 19 yrs and father of 3 teen girls.
DC: LDR of +4 year