Once we got on the mats and started feeling each other out , it didn't take her long to take the first shot. I sprawled and locked on a tight guiteone...choke and quickly tapped her out. The next time I shot on her took her to the mat and after some scrambling I finally took the top and was caught in a butterfly guard(this put us almost crotch to crotch). I caught her smile and tighten up her guard, I was glad I was wearing a cup so she couldn't feel my erection growing. I went for another. I decided to try and take my mind off it and save my energy for tomorrow by playing a few video games on my PC and then go to sleep. I walked over to the PC in the corner of my room and got lost in playing 'Tomb Raider' in no time."Jacob!" I heard a voice say and something nudge my arm. "Jacob, wake up." It was morning, and mom was waking me up. I opened my eyes sleepily. Mom had opened the curtains and daylight was flooding into the bedroom. I had a semi-hard on under the sheets. I noticed mom. After Samleft I couldn't help but think about how much he had changed betweenvisits. The first two times Sam visited he stood about 6' tall while onthe third 'he' seemed to be around 5'8". On the first two visits, Samhad a deep voice and big frame. On the third, he sounded and lookedmore like a girl. If fact, the only way I even knew it was him was he'dreappeared in my closet and the look in his eyes. All three visitorshad the same kind brown eyes framed by thick glasses.Why did the third. “Don’t tell mom or dad about this, I was just…” Alex finally tried to speak and save himself. “You were just…?” Amy teased, “You were just jerking off on your sister’s panties.” Amy didn’t seem angry or shocked. She was just laughing and teasing her brother. Alex felt a little relax and he got up hiding his cock and leaving those panties on the bed. “Okay, I won’t tell mom or dad about it but…” Amy said still standing near the door. “But…?” Alex again got scared. “But… you have to do finish.