consensual contract

Webster's Dictionary (GCIDE)

Consensual \Con*sen"su*al\, a. [See Consent, v. i., and cf. Sensual.]

1.(Law) Existing, or made, by the mutual consent of two or more parties. [1913 Webster]

2.(Physiol.) Excited or caused by sensation, sympathy, or reflex action, and not by conscious volition; as, consensual motions. [1913 Webster]

Consensual contract (Law), a contract formed merely by consent, as a marriage contract. [1913 Webster]