I just graduated from high school. Turned 18 a week before graduation. I'm 5'5" tall, around 190, blonde hair. I live with my father as I really can't afford to rent a place of my own yet. I got a part time job before graduating. My boss said he would give me more hours after I finished school. My mom no longer lives with us. She left my dad a couple years ago. He hasn't dated anyone sense.
My dad stands 5'9" tall, around 210. Stocky. 40 years old and good looking. Sometimes I have thoughts about taking care of his sexual needs now that mom is gone. I assume the reason why he hasn't started dating is because there really isn't a lot of privacy here. Shortly after my mom left my grandpa came to live with us. Grandma had passed unexpected from some incurable disease. Doctors still don't know what caused it but it hit grandpa hard. Dad insisted he come live with us.
Grandpa was 5'11" tall. Around 175. Slim but still well built for a man of 63. Pretty sure he worked out a lot when grandma was alive. But he seemed to just not be interested in much anymore. Dad thought it might help being around us. It seemed to be helping as he talked more and showed interest in what I was into.
One day I came home early from work. It was slow so they said a few of us could leave early if we wanted to. It was a beautiful day out and I decided to take advantage of the offer. I didn't live far from work and walked on the nice days. It took me about 15 minutes to get home. I reached the front door and turned the knob. Locked. Strange I thought. I unlocked the door and went inside and didn't say anything. I heard voices coming from my dad's bedroom. I figured maybe grandpa had gone somewhere for the day and dad was getting some finally.
I walked up the hallway to just shy of his bedroom door which was partially opened. I knew I shouldn't but couldn't help it. What I heard next shocked the shit out of me.
"Oh son. You have the most beautiful cock. I love sucking it so much." It was my grandpa's voice.
And I than heard my dad's voice. "You don't know how much I love you sucking my cock dad." "When you first suggested it, I was shocked." "But it proved to be a way to enjoy sex again without doing the dating scene." "I glad I asked you to move in with us."
I found myself rubbing my cock through my jeans. I took a chance and peeked in the slit of the partially opened door. There was my grandpa sitting on the edge of the bed. My dad's cock buried in his mouth and both were moaning like two little cheap sluts. Grandpa was working my dad's cock for all it was worth.
"Yes dad. That feels so good. Love when you take my full 8 inches in your mouth and throat." "I getting close." "Let me suck you for a bit."
My grandpa stood up and my dad sat on the edge of the bed. My grandpa had a beautiful cut at least 9 inch cock. And rock hard. I couldn't just stand there and watch anymore just rubbing my cock. I slowly pulled down my zipper so as to not make any sound. I took my erect cock out and started stroking it. I am about 7 inches fully erect and cut.
"Mmmmm son. Your mouth feels so good wrapped around my cock," my grandpa told my dad. "Here. Take the whole 9 inches." Grandpa pushed forward until he had his cock buried to the hilt in my dad's throat. Dad never even once gagged. He just took it and moaned loudly. I could tell he loved having my grandpa's cock in his mouth.
Grandpa started fucking my dad's mouth and a few minutes later he said he was close.
"Okay dad. Let's 69. So we can enjoy each other together."
They lay on the bed side by side in opposite directions. I watched as they took each other's cocks in their mouths. My grandpa and dad in a 69. Needless to say, it was something I had never thought I would see.
They started sucking each other fast and moaning as they did. I could tell both was working for the end result. I wasn't sure if they would go all the way but found out a few minutes later. They both started fucking each other's mouths fast and hard. I was stroking my cock like there was no tomorrow. Then they both stiffened and I could hear both of then swallowing. They were cumming in each other's mouth and swallowing every drop. That put me over the edge. I started cumming in a hankie I had in my back pocket. I came like I've never cum before. I let out a moan as the last of my cum dribbled onto the hanky.
Shit, I thought to myself. What if they heard me. I immediately headed for the bathroom. I waited a few minutes and no one came to the door. I decided to take a shower while in there. Look like I had just gotten home and was cleaning up after work.
I finished my shower and headed to the kitchen. Dad was working on dinner and grandpa was sitting at the table. Neither one showed any signs of what had taken place or that they knew I had seen them.
"How was work." My dad asked.
"It was slow. We spent the last part of the day cleaning." I replied.
"So how was the day for the two of you." I asked looking at both of them.
"It was a very good day," replied grandpa.
"Yes, A very good day." chimed my dad. Both of them showing a little smirk. They had no idea I knew.
The week passed and everything was going well. Work was good. Dad and Grandpa were happier than they had been in some time. I spent the evenings in my room watching male incest porn and jacking off each night. Each time cumming like it was my first time. I loved what I saw and now wanted to be a part of it.
A couple weeks had passed since that incidence. Work was slowing down again and the boss asked a few of us if we would like to leave early again. I jumped at the chance hoping to catch dad and grandpa sucking each other again. Boy was I surprised.
I got home and sure enough the door was locked. I quietly unlocked the door and went inside. I crept to within inches of my dad's bedroom door which was partially open once again. And I could hear moans coming from inside. I peeked through the partial opening and got another shock. Instead anyone sucking each other, there was my dad bent over the edge of the bed. My grandpa had his cock buried in my dad's ass.
"God son, your ass is so hot and tight. Tighter than any pussy I ever had." "You love daddy's cock up your ass son." my grandpa said.
"Yes dad. I love when you bury the full 9 inches in me. And when you fuck me slow. Taking your time for both of us to get full enjoyment. I'm glad you love my ass and fucking me." replied my dad.