Me and my mother – Episode 2 --- Part 1

In fact it is a continuation of my previous posting “ My sweet sister” but since it involved my mother , I am giving a separate title.
As explained in my above posting our sleeping arrangement was as per mother’s instructions. So during my elder sister’s “period time” mother instructed my younger sister and younger brother ( who were sleeping along with her in her room) to sleep in the room along with my elder sister for the next one week. So I was asked to sleep with mother. Without thinking “why” , we simply obeyed our mother since she was now the Boss of our home in Dad’s absence.
“ Me and my mother” Episode-- 1 had happened about 4 to 5 months before in which me and mother had some limited sexual activities as detailed in my posting. But there was a major change in me between that episode and now. At that time I was totally ignorant of the fact that the children are produced due to the copulation of parents (which includes my parents as well). But even now mother does not know I got this knowledge (from my elder sister). Although I had decided to let mother know about my new knowledge ( I had planned some advantage to me by revealing to mother that I knew that she and Dad used to have sexual activities – which she always kept as a big secret to me).The advantage I was planning will be explained later.
I now knew that I have full 7 days to spend with mother which gave me pleasure. Last time she had restricted our activities mainly to oral-genital relation ship only. Although I was very much interested in doing much more ( including actual penetration—which I could not experience so far even with my sister since I did not want to break her hymen as requested by her) I had to restrict as per mother’s suggestion.
Any way I started imagining things from the morning itself and eagerly waiting for the night to come. One important advantage was unlike the two previous occasions (one with mother herself 4 to 5 months back and the other with elder sister few days back) there was no question of fear to start the activities this time since it was started 5 months back only although it was only for one day.
Somehow after dinner ,once sisters and younger brother left to their room , me and mother occupied our room and closed the door behind us. As usual she went to the attached toilet and came back to sleep with only underskirt and blouse (without Bra and of course without panties which she never used.) With semi transparent blouse revealing her sumptuous boobs and the under skirt with the big slit , she was looking quite sexy. Her erect nipples were clearly visible through the semi-transparent blouse. My roving eyes explored in detail her whole body partially dressed. This time I did not have to look through the corner of my eyes but I could look straight which I did boldly. I whispered in her ears “ Mom you look gorgeous and extremely sexy”. Mom was very much happy to hear my comments. But hiding her happiness , she responded “ You naughty boy ……..” I noticed that her already erected nipples were erecting more. Mom told “ I think the slit of my underskirt is your favourite area”. “ How do you know” I asked with a bit surprise. She replied “ I had noticed it on the day I bathed you about one and an half years back when you were only 13 tears. You were carefully looking through the corner of your eyes thinking that I did not notice.” I shot back “ Oh ! My God. You had noticed it.” “ Why not?” Mom responded.