This story takes place on the evening of Valentine's Day in 2018 shortly after I had recently turned 20. I woke up around 10 o'clock PM to get something to drink so I take my phone so I can use the flashlight but I notice the living room light is on so I put my phone away and I go to see who it is. The fact that it's only my grandmother and father that I live with I figured it would have been my grandmother because she has trouble sleeping often.
I froze the second I stepped foot into the kitchen as I seen my father naked and standing over my grandmother, his mother, who was wearing sexy red lingerie with her large busty tits out and on her knees in the center of the living room with both of his hands tightly gripped to both back sides of her head absolutely shoving his cock in and out of her mouth. He slightly kneels down a bit and pushing his whole lower half forward making his dick go in and out of her mouth without losing rhythm. I can't help but to look at my father's cock, and to see how fat, veiny and thick it was. It was easily 3 times wider than mine. I'm even more surprised to see how well my grandmother is handling her son face fucking her like this. I thought all the surprises were done but I then notice she's clawing into his ass cheeks with her nails doing her best to push her sons' rock hard cock even further down into her throat.
I can't fight the fact that I was turned on by this so I pulled out my phone and started taking video. It seemed as if my father was taking all his frustration out on his mother's mouth as I watch him thrust his hips back and forth at a fast pace, but my grandmother kept on sucking and even though he was forcing her head onto his crotch I could tell she's also doing her part and moving her head back and forth onto his dick with strength I've never really seen her use. I couldn't hear anything happening when I was approaching the kitchen, but now all I can hear is the spit in my grandmother mouth being swished around by my dads' fat cock and my grandmothers' tongue and lips smothering my dad's dick with saliva.
I stand in between the hall and the kitchen with the living room right in plain sight, and I can't help but to pull out my cock and start masturbating. Now I'm jerking off to my father face fucking his mother in the living room while I record them. I see her saliva mixed with my dad's pre ejaculate dripping from her mouth turned me on way more than any porno ever has. When she stopped to take a breath she gasped so hard it was the loudest thing I heard since I woke up but every time she stopped to take a breath real quick she would strongly pushed my father away and gasp loudly and go back to sucking his dick, this continued for about 5 more minutes. She stopped to get some air and my dad aggressively pulls her hair downward making her look right up at him, he says something to her but I can't hear what he's saying.
He says something to her as he grabs her by the arm to stand her up turns her around and bends her over the couch. I look at her ass as she bends over and let me tell you, my grandmother has quite the bubble butt, so round, fat and jiggly. Reality then kicks in as I realize my father is about to fuck his own mother. I'm shocked by what I'm seeing that I can barely breathe; I even stopped jerking off to see if my dad was actually going to penetrate his mother's pussy. She slightly bends over more and with one hand on the top part of the couch and the other spreading her right ass cheek to the side to grant my dad better access. My dad steps up from behind her and I see between his legs a slab of droll hanging off his dick from him mouth fucking his mom and he scoops it from below and rubs it back onto his dick, and then used what was left on his hand to rub on his moms vagina as a lube-like substance. I see mostly their behind during this part but it was enough to know that he was not wearing a condom and as soon as he had her bent over he plugged her pussy with his fat cock faster than I could catch my breath. I could literally see their body language melt in pleasure as my dad's cock went deeper and deeper into her pussy.