#123113 - I dont know which reason it was or if it was a bit of both, but I told her everything either because I realized that coming clean about everything wouldnt make things much worse after what had just happened, or the fact that she was making little barely noticable motions with her hand on my thigh and just stared at my limp dick as it slowly rose up fully erect. Dont think I didnt notice that you pointed it toward your sister on purpose! You better tell me whats going on with you and why you obviously were enjoying having us watch that! Finally she let go of my cock, resting her hand on my thigh instead, as she sat down next to me on the bed, waiting for my explaination. Tell me, you saw her in her new bikini and what? She playfully ran a finger along my dick trying to get me to finish what I was saying.