Which of the following is not a form of sexual conduct described as 'first degree'?

First-degree sexual conduct generally refers to acts that involve a severe breach of consent and often include forms of violence or coercion. The correct choice is characterized by consensual relations, which fundamentally differ from first-degree sexual conduct because consensual interactions involve mutual agreement and a lack of coercion or force.

Forcible penetration, non-consensual touch, and coercive behavior are actions typically associated with first-degree sexual offenses. Forcible penetration implies the use of force or threat, non-consensual touch implies unwanted physical contact, and coercive behavior indicates manipulation or threats to gain consent. All these elements signify a violation of consent, placing them in the category of serious sexual offenses.

In contrast, consensual relations do not fit this definition, as they are based on the voluntary and mutual agreement of all parties involved, thus exempting them from being classified under first-degree sexual conduct. This distinction is essential in understanding the legal and ethical frameworks surrounding sexual conduct and consent.