Op I am a survivor of childhood sexual abuse by my father, people familiar with my username will know I am a fairly robust person in discussing such matters usually but your first post gave me serious chills and nausea from the familiarity!
This IS controlling, emotionally/mentally abusive and quite possibly grooming - abusers don't just groom their targets they groom anyone they need to in order to gain access to their targets and have excuses already in place for if they are caught doing things surreptitious but not obviously abusive.
My father was always somewhat obsessed with me - not just my opinion. But as I approached teen years this seriously ramped up. At first he "teased" me about my "new found modesty" when I started closing my bedroom door when getting dressed, locking the bathroom door when I was in there, wearing a bath robe if outside my bedroom while in night clothes. He also started "monitoring" my personal hygiene (there was no need to I was no worse than any other kid and like you my mum kept a rough eye on anyway), "checking" I'd brushed teeth washed my face properly, then he started sneaking in my room at night - supposedly because he "thought" he heard my tv or music still playing.
I started to feel unsafe, but couldn't understand why and there was nobody I could talk to about it. It was already an abusive home in other ways (mum was battered and financially and emotionally abused) so I knew there was no point talking to her and I didn't feel able to talk to anyone else because what would I say? My dad checks I've brushed my teeth?
Then when things started to become obvious I started to understand but still didn't feel able to tell anyone, he was very clever at playing off what he did at first as "accidental" (coming in my room when I was home changing with a pile of laundry or some item that belonged in my room he was "tidying" saying he didn't know I was home or didn't know I was undressing) or "unintentional" or "a joke" which had the intended consequence of making me second guess myself.
Eventually it got worse and the shame, fear and guilt (yes victims feel like it's their fault - not helped as abusers often say things like 'you're a tease' 'you're so pretty I can't help myself') stopped me from telling anyone again.
He also manufactured arguments between mum and I doing things like telling each of us different times to meet somewhere, telling me mum had said I was let off a chore then she'd get mad I hadn't done it.
It wasn't until many years later that I learned this was "grooming" because that was way back before people discussed such things as openly as now, but even now victims are reluctant to come forward.
Your partner is creating himself the perfect "excuse" for sneaking in their rooms at night for starters! THAT should have been stamped on by you immediately! Wtf were you thinking?
Almost everything he does - good and bad - is almost all involving a level of intimacy he shouldn't even THINK to have with them, and several create situations where he's alone with them.
Now a normal person in a new stepdad setup trends if anything to act with an abundance of caution in avoiding acting in ways that can remotely be considered inappropriate.
This guy can't help himself. I'm even wondering if his reason for not wanting them in the bed with you of a morning is because it would be just too difficult for him to conceal his...desires?
GET HIM OUT! And I mean like tomorrow!
Yes I'm hyper vigilant but omg so so so many red flags here.
And frankly even if that isn't his intent the gaslighting, controlling behaviour is bad enough!
Your children at the very least are walking on eggshells, unable to relax fully in their own home, being spied on, gaslit, monitored and controlled by some guy who only moved in less than 2 years ago! He's also trying to create a "them and us" between them and the 2 adults in the house. Thats what the rattling to you is about, he's trying to create a wedge between you and your girls - "testing" if they really "love" you?! That's never a good thing.
almost grooming you all to accept an invasion of boundaries there's no almost about it
Jesus then your subsequent post he doesn't like them sleeping together?!
Are you saying he didn't give any indication of this before he moved in? Of course he wouldn't or you wouldn't have moved in with him! He was masking.
God and I MISSED his early bedtimes too - if he's not going straight to sleep and isn't genuinely tired (which I don't believe he is) this is also suspicious.
You say you wouldn't tolerate if he had nefarious intentions but I'm concerned you don't know what the subtle signs of that are. Myself and at least 2 other csa survivors on thread have spotted several potential causes for concern.
When you're downstairs would you hear if he went in their rooms? Also bear in mind that men of that type wouldn't necessarily be interested in both girls. They have preferences - age, appearance etc they're also good at assessing who's least likely to tell!
One of the reasons my sister doesn't believe I was abused is because he didn't also abuse her sexually (he targeted her in other ways) - that made me 2nd guess things at first too but when I eventually started discussing with mh professionals (who by the nature of their work deal with a lot of victims) I learned that too is a myth. They explained about preference, how they size up the best child to target etc
Is there one of your girls he seems particularly set on creating a divide from you? Framing as a "naughty" girl? A liar? Not to be trusted?
PLEASE get him the FUCK out!
Call the nape for advice on talking to the girls to gauge if anything worse has happened.
From a few of your comments I think you may also be labouring under misconceptions of what constitutes sexual abuse, you seem to think it goes from nothing to the worst with little warning? Not how it works.
Also not all abuse happens at night
Frankly I think anyone considering moving a step parent in should do a Sarah's law check first