A. A person commits sexual assault by intentionally or knowingly engaging in sexual intercourse or oral sexual contact with any person without consent of such person.
B. Sexual assault is a class 2 felony, and the person convicted shall be sentenced pursuant to this section and the person is not eligible for suspension of sentence, probation, pardon or release from confinement on any basis except as specifically authorized by section 31-233, subsection A or B until the sentence imposed by the court has been served or commuted. If the victim is under fifteen years of age, sexual assault is punishable pursuant to section 13-705. The presumptive term may be aggravated or mitigated within the range under this section pursuant to section 13-701, subsections C, D and E. If the sexual assault involved the intentional or knowing administration of flunitrazepam, gamma hydroxy butyrate or ketamine hydrochloride without the victim’s knowledge, the presumptive, minimum and maximum sentence for the offense shall be increased by three years. The additional sentence imposed pursuant to this subsection is in addition to any enhanced sentence that may be applicable. The term for a first offense is as follows: