Tex. R. Civ. P. 510.11
On the trial of the case in the county court the appellant or appellee will be permitted to plead, prove and recover his damages, if any, suffered for withholding or defending possession of the premises during the pendency of the appeal. Damages may include but are not limited to loss of rentals during the pendency of the appeal and attorney fees in the justice and county courts provided, as to attorney fees, that the requirements of Section 24.006 of the Texas Property Code have been met. Only the party prevailing in the county court will be entitled to recover damages against the adverse party. The prevailing party will also be entitled to recover court costs and to recover against the sureties on the appeal bond in cases where the adverse party has executed an appeal bond.
Tex. R. Civ. P. 510.11