Finally a day came when a strong storm front was blowing in. I put on a thin white cotton sundress with nothing on underneath. It was already almost t...ansparent - the shadow of my nipples could easily be seen. When the sun shown through the dress it was very evident that I had no panties on.Anyway, I got someone to take me to the far side of town. I live in a large city so that was about an hour away from my apartment. The storm had blown in and it was really pouring. It was about 10:00 am and. At last the time arrived and we got into the train, but could find only 1 vacant seat and mom occupied it. You know how these general compartment are and over that it being marriage season the compartment got full crowed, people could hardly move.When the train was about to start an old man who could hardly walk approached our berth, seeing him mom felt pity and offer her seat to him. Till the last minute people were boarding the train, due to this the pushing increased and me and mom got. She periodically spits more saliva on her to keep them properly lubed and slippery for my cock to fuck her with. "Time for your ass, now", I say. She stands up and takes off her tight jeans and her lacy thong and bends over right in front of me as she does. With them around her ankles and bent over, she looks back and says, "You want your thick cock to go in this tiny little hole?" I pick up the lube and pout some out into my hand and rub it all over her tight rosebud and all over her juicy ass. I anxiously put both hands back down in between my legs and felt the smooth wet skin of my vagina.My brother cautiously asked, "s*s, you don't have any clothes on now, do you?"I knew he was looking at me and I shook my head no.Then, in quiet voice my brother whispered, "I'm gunna take my boxers all the way off, is that okay?"I didn't say anything but I nodded.Then I listened as my brother squirmed under the covers for a few seconds. I could feel his weight moving on the bed just inches from me..