Usage examples for mutual:

• As he spoke it seemed as though the sharp firing upon both sides suddenly ceased by mutual consent. "My Lady of the North" – Randall Parrish

• He often did this with Mr. Bates, he added, to their mutual satisfaction. "Command" – William McFee

• It was mutual I believe. "Prison Memoirs of an Anarchist" – Alexander Berkman

• At such times, her thought turned to the other parent, with whom, had he and she been left alone, she could have lived so happily, in so much mutual intelligence and affection. "Will Warburton" – George Gissing