In re A.W.

OPINION

Opinion by

SANDEE BRYAN MARION, Justice.

This is an appeal from a juvenile adjudication and order of disposition. A jury *634found that appellant engaged in juvenile conduct, i.e., aggravated sexual assault of his eight-year-old step-sister, K.M. The jury assessed a punishment of commitment to the Texas Youth Commission (“TYC”) with possible transfer to the Institutional Division of the Texas Department of Criminal Justice for ten years. We affirm.

EXTRANEOUS OFFENSE

In his first issue, appellant asserts the trial court erred in denying his motion for mistrial, because the evidence concerning…