My 2 Sisters (part 2)

After the 1st play with my younger sis, i was nothing but a complete wank addict , wanking maybe 4 to 5 times a day and hoping to get caught by any one of my sisters.
I would wank into there knickers and bras all the time ,leaving my cum in my little sisters underwear so she could see it.
I was having around my 3rd wank of the day when i saw my older sister walk past our bedroom curtains outside the house towards our back door.
My heart was pumping out of my chest, holy fuck i thought and carried on rubbing my hard as hell cock and more precum oozed out the end of my cock at the thought of being caught doing this.
I heard the backdoor open but no footsteps because of the carpet ,so i didnt know where she was going so i carried on rubbing my cock but slowed down a bit and was squeezing the end to make more juice come out the end.
I also had a pair of the older sisters knickers in my hand wrapped around my balls and rubbing them against my ass as well.
We all shared the same bedroom as our family lived in not the best conditions to say the least.
But we all had food and warmth at the time and a awesome mother.
Ok so i was kneeling on the floor next to my older sisters bed pants down cock in hand and wanting to come like a fucking geyser.
Door opens i turn to the door the best i can ,my heart is ready to go boom older sister walks in.
She sees me ,stops in her tracks eyes down to my fat hard cock and i explode.
Im scared as fuck ,she is frozen on the spot.
Around 10 secs pass what seems like and hour.
And we meet each others eyes ,she finally lets out a breath and says ffs warn me next time.
Then we both laughed out of relief as I cleaned up my mess.
To this day i can still see her face as i unloaded the 1st time in front of here.
More to come later.