Mutually

They mutually acknowledged each other's contributions to the team.

The two friends have a mutually beneficial relationship.

The two students have a mutually beneficial study group.

The two musicians have a mutually agreed upon songwriting partnership.

The couple made a mutually supportive decision.

The two neighbors had a mutually respectful relationship.

The couple felt mutually happy about their decision to move in together.

The two friends had a mutually enjoyable time at the party.

The two friends had a mutually respectful conversation about their different opinions.

The two students had a mutually challenging assignment that pushed them to their limits.