They've been working together on the project for months and are now thick as thieves
The two sisters are inseparable and always seem to be thick as thieves
My kids are always playing together; they're thick as thieves
He and his best friend were thick as thieves since childhood
The new employees quickly became thick as thieves, sharing secrets and lunch breaks
After the intense training camp, the team members were thick as thieves
She trusts him completely; they're thick as thieves
My grandmother and her neighbor were thick as thieves, always helping each other out
The two cats in the house are thick as thieves, napping together in sunbeams
We were thick as thieves in college, getting into all sorts of mischief
You two are always together, thick as thieves.
We are good friends, we do everything together.
I see that, you share many secrets.
The two friends were thick as thieves, sharing all their secrets
They were very close and trusted each other completely
Their bond was incredibly strong; they were inseparable