“Sexual Assault with an Object” means use an object or instrument to unlawfully penetrate, however slightly, the genital or anal opening of the body of another person, without the consent of the victim, including instances where the victim is incapable of giving consent because of his/her age or because of his/her temporary or permanent mental or physical incapacity. An object or instrument is anything used by the offender other than the offender’s genitalia, e.g., a finger, bottle, handgun, stick.