Most of my ongoings with my hot older sister fall into the nasty or sex category, but this incident, to me anyway, was revenge based on anger. My car wasn't running right, so I asked my hot-bodied older sister to help me with some errands and pickups, including a suit that had to be taken in. Guess that stop was the last straw for her, and she lashed out at me about "building up like a man" (her bf at the time was a roid and muscle-head). That didn't sit well with me, especially since I hated the guy. Anyway, she pissed me off enough to plan revenge and payback. "D" had a pool at her house, and an open door policy for me to use it. Following weekend, I had two of my male friends visiting, and thought what a perfect opportunity to show off my big-titted hot sister. And maybe get her back. We went to her house, finding her outside in white shorts and a black, easily-removable tank top. Chatted a few minutes, mentioned the pool, and she led us to the deck. Her mistake, my opportunity. Pushing her in, we immediately followed, forming a tight circle around her. D at first thought it was a joke, saying, ok guys, I gotta get out. I, however, told her NO. "So, I need to bulk up, like your roid man, huh?" I asked, tugging at her wet shirt as the guys laughed and grabbed at her body. She shrieked for help and let me go, also advising "I'm not even WITH him anymore!". Didn't matter to me. She had to be exposed to my friends, and shamed a bit in the process. I admit, and confess, I'm the one who tore her shirt off and tossed it out of the pool to get her topless. We kept her in the water for a good 15 minutes before having our hands-on fill of her, letting her escape. One of the guys got her shorts down, but not her undies.. A wet, topless revenge on her was mine! Damn, I admit it and openly confess, but it still feels so good to have gotten away with! She never made the bulk up reference again. Maybe she knew what would happen?