Opinion

Defendant was convicted of oral copulation with a person under 18 years of age. He testified to a reasonable belief that the victim was over 18 and requested an instruction that this was a valid defense under the rationale of People v. Hernandez (1964) 61 Cal.2d 529 [39 Cal.Rptr. 361, 393 P.2d 673, 8 A.L.R.3d 1092], which held that such a belief was a defense to the crime of unlawful sexual intercourse with a person under 18 years of age. The instruction was refused.

We are unable to detect any valid distinction between unlawful sexual intercourse and oral copulation within the rationale of Hernandez based upon which orifice of the human body is used. The refusal to so instruct was prejudicial error. It not only deprived the defendant of a crucial defense, it deprived him of his only defense.

*398Judgment reversed.

McDaniel, J., and Tamura, J.,* concurred.