Question about when you take in 2 kittens at once

Apple & Pedro came to me at the same time. Pedro's name was the same name he'd first received when rescued so he knew his name within a few days here. Apple's name I changed from something else so she was nearly 6 weeks before she knew. However, I called them both "Kitties" or "Fluffies" and they would both turn and look at me which was ultimately all I needed. The were always together for the first 3-4 months with me. Apple LOVES LOVES LOVES her big brother so much that when they first arrived she would run circles around, over, and under him whenever they walked anywhere for the first few weeks. They are not littermates, but were rescued within 6 days of one another so had been indoors together almost their entire indoor life.

It was about 4-6 weeks before either of them sought me out for pets or any manner of snuggling, but then they are from feral backgrounds. As you get to know them and they get to know you and you household they will pick their people. I think you mentioned intros with the other kitties are still ongoing so there is household learning still happening. It might be after all of that is sorted before the really bond with their people since their already engaged in learning one type of interaction.

At about 18 & 20 months old they do enjoy snuggling and sleeping together. Lots of rough & tumble play. The chase one another all the time. They also do all of those separately.

I think it is important for them to have the security of one another so that they can learn secure attachments to their people and perhaps even eventually to your other kitties. Time and patience!

LOL Krissy

When I rescued a feral litter, they were about 5 months old. Two were tamed right away, so I got them adopted out. Disco also tamed right away, but Zinny stayed pretty skittish...and they were so attached, that I decided not to adopt out Disco, so that maybe Zinny would learn from her that humans aren't so bad.
Zinny got individual time with me...but that's when I had to bring her into the bathroom (so she didn't have anywhere to run and hide) when I gave her medicines twice a day when she was recovering from pneumonia.
It worked...she started trusting me to the point I can handle her MOST of the time if I'm slow and quiet.
Unfortunately, right about the time Zinny started being better about letting me handle her, my dad got really upset about "all the d*m cats in the house" and made me kick them out into the yard again. They both would still come up to me for petting and snuggling when I went out to the feeding station. Disco would roll over and want belly rubs... Zinny wouldn't come out into the open yard, and would stay in the bushes - but didn't totally run away from me, and I could pet her if I was slow and quiet and gave her time to come to me at the edge of the thicket.
Disco disappeared in March. I'm assuming, since they were so inseparable, that something bad happened to her like a raccoon attack or hit by a car or something. I think that if she had just wandered off to new territory, that Zinny would have gone with her.
Since I'm so attached to Zinny, I decided I would keep her safe from whatever dangers are outside, and made her an indoor pet permanently. My dad is not happy at all, but oh well... at least he hasn't kicked ME out (yet).