Sophie sat on the edge of the bed, feeling her nerves rise as her sister Mia walked in.Hey sis, Mia said softly, looking Sophie up and down.Are you ready for some fun? Sophie nodded eagerly, unable to resist the desire that was building inside of her.She had always been fascinated by her sister's body, but never before had she considered having sex with her.Mia reached out and ran her hand over Sophie's leg, pulling her closer to the bed.I thought we could start with something simple, Mia whispered, just some dry humping.Sophie felt her heart race as Mia's body pressed against hers.She had never felt so attracted to anyone in her life.As they started to move together, Sophie couldn't help but feel a sense of excitement and pleasure building inside of her.She wanted to give in to the urge and let herself go completely.Suddenly, Mia stopped moving and pulled back slightly.Oh, I forgot something, she said, reaching into her purse.Sophie couldn't help but notice the small packet of condoms in her bag.What's that? Sophie asked, curious.We might want to protect ourselves, Mia explained, pulling out the condom and rolling it onto her finger.Sophie watched in amazement as Mia slid the condom on, feeling the silky material slip over her skin.As Mia slipped off her clothes and got onto the bed, Sophie couldn't help but feel nervous but also excited.She didn't know what to expect, but she knew that this would be a once in a lifetime experience that she would never forget.Mia pushed Sophie onto the bed, making her take the top position.As Sophie felt Mia's hands on her shoulders, pushing her down onto the bed, she felt a sense of power and control coming from Mia's body.As their bodies pressed together, Sophie couldn't help but feel her breasts feel full and hard, pressing against Mia's chest.Mia looked down at her sister, feeling her body respond to her own touch.Mia leaned forward, placing her lips on Sophie's neck, gently nibbling on her skin.Sophie felt a surge of pleasure as Mia's lips landed on her sensitive spot, causing her to gasp for breath.Mia reached over, grabbing Sophie's waist and pulling her closer.They began to move together rhythmically, Sophie's body pressed against Mia's in perfect harmony.As they continued to move together, Sophie couldn't help but feel her own body responding to her sister's touch.She could feel the tension building inside of her, like a coiled spring waiting to release its energy.Finally, the moment came.Sophie felt Mia's fingers wrap around her clit, applying pressure just right to send her over the edge.Mia continued to move her hips, matching Sophie's own movements perfectly, leaving her feeling nothing short of ecstasy.As they lay there panting and sweating, Sophie couldn't help but feel grateful for the experience they had just shared.She knew that this would be a memory that they would both cherish forever, and that they couldn't wait to do it again.