Doesn't reply to anybody else's because Cynthia doesn't... really keep secrets.

All of the things they've done with Severa.

Both Nah and Kairi actually feel a little guilty about that and rationalize that of course Severa's told her, so they don't need to.

Meanwhile Severa hasn't told her all the specifics but also in her mind nobody needs to so shrugs.

Yeah that's not... entirely a secret. Though she would like if Severa came to her with concerns more.

Especially if it means avoiding getting to 'I feel like shit please trance me.'

Rip.

Also Nah is hiding the fact that she really doesn't trust the Nohrians from Cynthia and is worried they'll steal Severa away, because either Cynthia would agree and do something dumb, or she'd think Nah was being paranoid (which she probably is) and try to get closer to them to prove her wrong.

Seconding "stuff done with Severa"

actually Nowi would be happy to tell her about it

she just hasnt asked

Nowi would talk her ears off.

And then proceed to make suggestions about new stuff to try.

she's some kind of guru

And then do the same to everyone else she or Severa has ever met.

"Hi, I'm Nowi and this is Severa. If you put your pinkie in her butt she'll squeal like a pig."

... Nowi are you turning into a pimp.

Is that what's happening here.

not a chance

her girls belong to her

she'll just brag about what she can do to them

well Hei hasnt told Ryobi of his full past; involved lots of murder as a kid just to stay with his sister in another organization.

There's lots of things Konoka hasn't told Ryobi yet

Probably the most pressing one is "you got very lucky unearthing my masochism"

Ishida probably would have dated Elsa if it had ever come up.