A very nice trip of commission in train 3 :-P

Continuing the story of the period that I had started to do the voyeur with my sister that I am telling from my previous posts to this one :-P, in this post another very nice situation of me being a voyeur with my sister :-P. It was the third time that i and my sister we had trip of commission in train, it was a sunny winter's day January/february and for this commission-trip with the train my sister had an adorable and delicious pantyhose i.e. black and transparent (my favorites! :-P and like in the first trip of commission by train that i told in the my previous post entitled "A very good trip of commission in train 1" :-P), and with the usual low shoes when she has the skirt and pantyhose :-P :-P :-P and then my sister's skirt it was also enough tall :-P, as well as in the previous errand trips and always with the trip in train that i and my sister we had done in that last period and my sister had always the same type of this beautiful clothing :-P for my great pleasure inside me :-P given it was already from a bit of time that my sister made me excited a lot :-P, as I told in my previous posts to this :-P, so also in this last commission trip by train I had the pleasure of seeing the beautiful legs of my sister because my sister has delicious and powerful legs :-P (indeed she had at the points from the parts of her knees a small holes on her pantyhose :-P) and given I, on this occasion, of course, I had done in the way to sit in front of my sister :-P because the opportunity had been offered to me, and therefore i, taking advantage of the moments that she did not saw me :-P, at every small or medium opening of her legs :-P, I had the pleasure of seeing her beautiful panties nice white:-P, so I was able to admire a beautiful view in this occasion i.e. sheer-black pantyhose (my favorites! :-P) with panties white (panties white are also my favorite among the panties :-P) because as I said before of course I had made sure to sit in front my sister because the opportunity was offered to me :-P and in both times, both at the gone trip that to the one on the way back :-P. I would have liked, as I had done in the previous train trip of this latter (told in my previous post of this :-P) where I masturbated putting my hand in my jeans pocket (jeans wide enough for that occasion :-P) because obviously I had a nice stone cock :-P, but in this occasion I was afraid that my sister would notice me because I don't know if she had noticed it on the previous trip to this :-P, and so I have wanted to spare myself :-P but still I was very happy and I had my cock nice hard and wet :-P. Then when, in the evening, we returned home, I could hardly have dinner :-P because I felt myself knockout :-P because I had my cock very rocky and wet and the balls that hurt me(!) :-P :-P :-P but I couldn't show myself :-P in that time of dinner, finally when I have finished eating I go to my room and I shoot a really beautiful very big(!) handjob in my boxer :-P, i think if I had done the cum outside my boxer I would have made a lake(!) on the ground :-P because i had a very big lake(!) and also very smelly(!) :-P. I don't know if my sister did it on purpose at wear always these beautiful clothes i.e. nice pantyhose with quite short skirts let's say not too long and always nice white panties exposed let's say during her opening small or medium sometimes even quite large of her legs it depended on her movements, even on this last travel occasion in train like all the other previous times that she and I had gone to this travels of commission in the train, why she had noticed that I looked at her always in the previous errand trips and therefore she liked being watched? :-P because it can be fun for the sister to be watched by her brother (quite voyeur like me :-P) when the brother, as indeed in my case, does the voyeur having a beautiful sister like my sister? it can be like this when the sister is not angry with her brother a bit voyeur with her :-P or inside her there is, let's say this :-P, a little malice to induce the brother a bit attracted (a bit :-P) from her, at to masturbate on her and so does she feel pleasure for this? :-P.