WET Prank on my Busty Stepsister! I love her bouncing big boobs and want more! Part1

It had only been a month since Liam moved in with his new stepfamily. Everything still felt new — the house, the routines, and especially his stepsister, Olivia. She was lively, smart, and just a little bit dramatic. One afternoon, Liam walked past Olivia's room. Her door was open slightly, and he saw her trying on different outfits in front of her mirror, striking silly poses like she was on a fashion runway. He smiled and shook his head. “She'd never act like that if she knew someone was watching.” It wasn't creepy — just a moment of honest curiosity, quickly followed by a mischievous idea. A few minutes later, while Olivia was in the backyard sunbathing with her eyes closed, Liam filled a bucket with cold water, snuck up quietly… and splash! Olivia let out a loud scream and jumped up, dripping wet. “Liam! What is wrong with you?!” He burst out laughing, holding up his hands in surrender. “I couldn't resist. You looked so relaxed.”