consensual crime

An activity to which all participants consent which is deemed to be illegal.

Japanese Meaning

参加者全員が合意した上で行われるが、法律に違反する活動

They insisted it was a consensual crime between adults, but prosecutors treated it as a serious offense.

彼らはそれが参加者全員の合意に基づく私的な違法行為だと主張したが、検察はそれを重大な犯罪として扱った。

Sense（1）

An activity to which all participants consent which is deemed to be illegal.

consensual crimes

（ plural ）