What is the test for a motion to dismiss counts 3 and 4 in a sexual assault case?

'Defendant's second contention is predicated upon the action of the trial court in denying his motion to dismiss Counts 3 and 4. His argument in support of this contention proceeds upon the theory that since both of the boys involved in these counts were over the age of fourteen years they were therefore accomplices, and since their testimony was not corroborated it was error for the court to deny his motion. Our examination of the record does not sustain such a contention. While each of the boys was an accomplice with respect to the particular act in which he participated the evidence does not disclose as a matter of law that he was an accomplice with respect to the acts perpetrated by defendant on the other. Both of the complaining witnesses were present at the time and place; each was the recipient of the same offer and proposition and each identified the defendant as the one who had picked them up in his car and made the propositions to them. The mere fact that each was an accomplice of the defendant with respect to the particular act engaged in by each did not in and of itself render him an accomplice as a matter of law as to the act charged against defendant with the other complaining witness. This was a question of fact to be determined by the jury and the court properly left that to the jury for its determination. People v. Griffin, 98 Cal.App.2d 1, 219 P.2d 519.'

Also see People v. Wertz, 145 Cal.App.2d 395, 397-398, 302 P.2d 613.