Punishment spanking - Hard OTK for brother-in-law, hand and hair brush

Brother-in-law has embarrassed me at a family party so as soon as he arrives he is taken straight into the study for a stern talking-to, and an authentic punishment spanking - hard otk hand spanking, then 2 hair brushes, finishing with a heavy brush. by the time i have finished with him his bottom is bright red, purple, and bruised and he is very sorry for his behaviour. he must learn to control himself and not show me up in public, and, as his strict step-sister, i know when he needs a real punishment.