As she watched the stepbrother engage in some serious fourth dimension anal action with his seductive mother, Emma couldnt help but feel a pang of desire for a similar experience herself.Her eyes were drawn to the stepbrothers muscular form and bulging package as he drove his cock deep into his mothers ass, watching every inch of penetration with pleasure.Emma couldnt deny that there was something incredibly enticing about watching two people engage in a sexual act together.The mother was stunning, her curvy hips and ample tits bouncing around as she moaned loudly with every thrust of her sons cock.It wasnt long before Emmas heart rate increased and she felt a wetness building up between her legs.Before she knew it, Emma was touching herself, running her fingers over her clit as she imagined herself experiencing the same level of pleasure as the mother.Her own breasts felt heavy against her chest and her legs were thirsty for some fulfillment of their own.For some time now, Emma had been intrigued by the idea of taboo sex and there was no denying that watching these two step siblings fuck in such an intimate way was getting her juices flowing.She couldnt wait until it was her turn to feel the same level of intimacy and pleasure that they were experiencing.But just as quickly as those thoughts entered her mind, Emma realized that there was another option available.She could simply watch the scene unfold from the safety of her room, allowing herself to fully indulge in the hot and steamy moment without anyone else knowing.And so, Emma continued to jack off while watching the stepbrother fuck his mom, relishing every minute of it as she explored new levels of excitement and desire.