What is the legal test for proving intent in a sexual assault case?

[Citation.] Proof of intent is rarely susceptible of direct proof and may be inferred from the circumstances of the case. [Citation.]" (People v. Moody (1976) 59 Cal.App.3d 357, 363.)

In addressing challenges to the sufficiency of evidence, "the reviewing court must examine the whole record in the light most favorable to the judgment to determine whether it discloses substantial evidenceevidence that is reasonable, credible and of solid valuesuch that a reasonable trier of fact could find the defendant guilty beyond a reasonable doubt. [Citation.] The appellate court presumes in support of the judgment the existence of every fact the trier could reasonably deduce from the evidence. [Citations.] The same standard applies when the conviction rests primarily on circumstantial evidence. [Citation.] Although it is the jury's duty to acquit a defendant if it finds the circumstantial evidence susceptible of two reasonable interpretations, one of which suggests guilt and the other innocence, it is the jury, not the appellate court that must be convinced of the defendant's guilt beyond a reasonable doubt. [Citation.] '"If the circumstances reasonably justify the trier of fact's findings, the opinion of the reviewing court that the circumstances might also reasonably be reconciled with a contrary finding does not warrant a reversal of the judgment. [Citation.]"' [Citation.]" (People v. Kraft (2000) 23 Cal.4th 978, 1053-1054.)