My brother and I have had some fun over the years. Jerking off together and sucking each other's cocks in the basement at home, fucking each other's ass at his place and on fishing and camping trips - was a regular occurrence any time we could, even when one or both of us were in relationships. It was just something we did (and still do when the opportunity presents itself).
I lived at home for years after he moved out - it was cheaper and I still had the freedom to come and go as I please. Having my sister still at home was nice as well, since her friends were all hot and stopped by regularly.
One Saturday she and her friends were over and with the parents away, we had some pizza for dinner before they went out to the bar. I walked around with a chub the entire time they were over - all of them getting dressed up to hit the town, showing leg, cleavage or spotlighting those fine asses in small and tight skirts. They packed up and left for the night and I gave it half an hour to ensure they were gone before I decided to blow off the load that was building up while I was checking out their amazing bodies.
With nobody around, I didnt have to turn the volume right down, so I was able to watch some porn with sound. I popped in a DVD of some first time bisexual action, as I was in the mood to watch some good cock sucking and some threeway action.
Settling back in my chair, I unzipped my pants and pulled my cock out and started stroking the shaft with one hand and playing with my balls with the other. I lost myself in the enjoyment, focusing on my cock as I watched two guys getting their dicks sucked by a gorgeous blond who looked just like my sisters friend Laura. Momentarily, I closed my eyes and imagined it was myself, her and my brother Stan, instead of the porn stars on the screen - a regular fantasy that played through my mind as I lay in bed at night. Getting my cock sucked by her, then him and back and forth they go, before she and I work on his massive cock together.
I guess I didn't hear Stan come in the house, but I did see him as I opened my eyes to him on his knees between my legs, reaching up to stroke my cock. He quickly said "hello", before wrapping his lips around the head of my cock and slowly working up and down the shaft, keeping eye contact the entire time. He was doing an amazing job, nice and slow - the perfect amount of pressure from his lips and his tongue dancing around the head of my cock. He took a quick pause to say he was in the neighbourhood, saw the light on and figured he would pop in to say hi. I didn't mind at all - always better when someone else does it for you. So I leaned back a bit more to thoroughly enjoy his mouth. With his head bobbing up and down and one hand stroking along with his mouth, the other hand was fondling my balls. That second hand moved under my balls and wormed its way between my ass cheeks, rubbing against my asshole. He was on fire today.
Then we both got a start as the door slammed and we heard a loud gasp. My sister had gotten booted from the bar they went to - she drank a bit too much before heading out - and so she had come home to sulk, not expecting to see me sitting in my chair with Stan fingering my ass and sucking my cock.
"What the fuck are you doing?" she asked.
"Just messing around a bit and giving each other a helping hand", I told her.
"And mouth", my brother said.
"Holy shit, how long has this been going on?" was her next question.
"Off and on for a couple years now - back to when we both lived at home. Started off jerking off together to movies and has moved along nicely since then", I explained. "Want to watch?" I asked her.
"Um, ok. I guess." she said as she sat down on the chair opposite us.