Chloe and Halle Bailey have a bond that can’t be broken — which is probably why the older sibling here says it was no issue keeping her little sister’s pregnancy a secret.

We caught up with sister duo at Essencemag’s pre-Oscar gala on Thursday — and Halle couldn’t help but blush and gush about her newborn baby boy Halo, whom she shares with boyfriend DDG … who was enjoying fatherhood as we spoke with Mama Bear.

Just check out the video DDG threw up recently … showing him goofing around with the kid.

Anyway, back to Halle — our photog asked if Halle’s musical talents have transferred over to the baby just yet … and based on her reaction, it sounds like it might be too early to tell.

So, instead … we lobbed her a softball, asking how motherhood was going — and HB told us it was great. Chloe, however, gave us a little more insight into her sister’s pregnancy … which sorta flew under the radar (although, not really).

Nonetheless, we asked Chloe if was difficult keeping everything under wraps for Halle — and she told us it was actually a breeze. Halle herself addressed this as well during her remarks at the event … and said she had no obligation to share her pregnancy with the world.

DDG echoed her sentiments to us recently — saying he didn’t cave to social media pressure nor did he feel the need to. Good on them.