Secretly watching my timid sister shower leads to intense pussy pounding and squirting orgasm

After a hefty night out, I found myself sneaking a peek at my timid sis as she was showering. Her luscious curves and tight ass were a sight for sore eyes, and I couldn't resist the urge to join her. As soon as I walked in, she was taken aback, but the thrill of it all got her juices flowing. Before I knew it, I had her on her knees, her tight hole yearning for my throbbing member. I wasted no time, plunging deep into her wet depths, her moans echoing off the tiled walls. The sight of her bouncing tits and my shaft disappearing into her was enough to drive me wild. I took her in every position, her body writhing in pleasure with each thrust. The climax was explosive, her pussy erupting in a deluge of cum, leaving us both spent and satisfied.