He tried to relax her as the two of them had a short conversation. As this was going on he was edging himself a little at a time up in-between Marisa'... legs until finally he was above her. They seemed to be disagreeing about something. Placing a finger over her mouth as if to quiet her down he said the only words I was able to understand. I looked as if he said the words "Just relax."He moved his hand back down to his cock as his arm was moving around adjusting something. I figured at that. The two were alone in the house as the parents had left for a week long honeymoon. Sue heard Jake in the shower and decided she would tease him and spy on him. As she opened the bathroom door she could she him through the glass doors on the shower and she stood and watched for a few minutes till he turned and she saw that her young step brother was very endowed. He was long and thick with a nice big set of balls. She could not help but just stand and stare. Then she heard the shower turn off. I went to tuition as usual and my exams are going to start I went there to ask a doubt in she greeted me and called me in I asked a doubt in she said I will teach you this briefly during your holidays now I will tell you just keep it in your mind. She stared with female part virginal and said when you insert the male part penis I did not understand but I dint ask her because I was busy seeing her breast over the blouse. She saw that and asked me weather I under stood what she told I said yes. She flinched in pain as the head of my cock penetrated her anus. I held back and then went slightly further in. I offered to remove my organ from her ass but by then the head of my cock was past her anal opening and was well inside her. It could tell Jane was getting used to my cock as I went further inside her. Then I just stood still so her anal canal could get used to being stretched open with my cock. I knew to be a considerate lover because a pussy is elastic and designed for fucking,.