Intense sexual encounter with stepsister in the shower, focusing on her voluptuous rear end until climax

After a long, hot day, my stepsister and I decided to take a relaxing shower together. As we were washing ourselves, she playfully splashed water on me, which quickly escalated into a steamy encounter. Her voluptuous rear end was the main focus of our intense sexual rendezvous. I couldn't resist the urge to explore every inch of her luscious curves, leaving no part untouched. As the water cascaded over her body, I indulged in the pleasure of stroking her firm, round ass, igniting a fiery passion within us both. The sight of her beautiful, big ass was enough to make my cock throb with anticipation. I took her from behind, thrusting into her with wild abandon, as she moaned in ecstasy. The sight of her on her knees, her mouth eagerly taking my cock, was a sight to behold. This amateur vixen knows how to please, and I can't wait to explore more of her enticing charms.