Your sister wants to play trick or treat with you! Do you like her costume? She is a sexy cow! You tell her that she got the whole Halloween thing wrong since her costume isn't scary and she gets upset! After all the effort she did to look good just for you! Be honest, don't you like being teased by her? She can make you so hard in that costume with her big tits and tight pussy and then milk your cock! She is a special cow that will drain your milk instead of giving you hers. Are you ready to have your balls drained? ;)