I had suspected, but never had proof; until now; they had always managed to somehow hide it, to keep it from prying eyes; until now. I peeked slowly and very carefully around the drape hanging from my bedroom window; looking down at the patio by our pool. I watched as his long thick cock slid slowly into her; I could see her face, the face of raw pleasure as he filled her. They were kneeling doggy style on the cool concrete, but I knew neither one of them felt the hardness of the stones. One effect of their position was it gave a clear view from where I stood as his cock finally slid clear in. She had to be tight; I could see the concentration on his face as he held back. The fact she never winced with pain, stark evidence this was far from their first coupling.
"Should we interrupt them" my husband Devon whispered in my ear from behind me.
"No, leave them be" I said softly.
"He's fucking her" Devon stated the obvious as I watched him begin to move his hips.
"I don't think she minds" I said sardonically, as raw pleasure radiated from her face.
"You're dripping wet" Devon whispered.
I suddenly realized where his hand was, not on my sex; but slid inside the now unsnapped shorts I was wearing; a thick finger sliding over my slick lips. I trembled as he slid that finger between my folds and into my steaming depths. He was right but wrong; I wasn't wet, I was fucking soaked. I pressed my ass back into his groin behind me.
"Your hard" I stated the obvious as his thick cock pressed into the crack of my ass.
I felt my shorts sliding down over my hips; I made no attempt to stop him. My eyes were locked to the couple below us; now in full swing. I could imagine the sound of hips slapping against that ass as he gained speed. God he was fucking her harder and faster as I watched her body rock.
I felt that hard cock, now bare; press against my ass from behind. I bent slightly at the waist, extending my invitation. I made sure I was still hidden by the drapes. While I was willing to bet that they were now oblivious to their surroundings; I didn't want to take the chance they might accidently see me.
"Fuck" I heard Devon grunt as the fat head of his cock slid inside me.
"Oh God" I couldn't hold back the moan as he slid inside my tight channel, my eyes never leaving the pair below us.
I felt my body shudder as he bottomed out inside me, a mini orgasm rolling through my belly. The insanity of the whole situation slammed home as my walls tightened around him. I was standing in my bedroom, my husband fucking me; while we watched our son and daughter go at it like rabbits below us.
With that mental picture in mind I probably should fill in a few things. My name is Rebecca Norr and I'm thirty-eight. Suffice it to say I'm the average woman you might look at twice, then again maybe not. I would have to say my best asset is my 36D's, but my husband seems to prefer my nice full ass; not that I'm arguing. My husband Devon is forty and had every inch of his eight inch cock pumping slowly in and out of my dripping pussy.
The pair down by the pool going at it like two horny rabbits would be Drake our son and Molly our daughter. Drake is twenty and attends local university and Molly is eighteen and supposed to be graduating from high school this year.
I say supposed to be not because of something she did, but it's actually what probably brought about our current situation. That would be home quarantine. By right Devon would be at his law office; and I would be happily selling flowers at my floral shop; while both Drake and Molly would be in classes.
Instead my shop was shuttered; Devon was doing his practice remote from the computer; while Drake and Molly were online for what classes they could. I suspect the fact everyone was in the house was what had led to the current outburst of hormones for our young performers. While Devon and I could do the dirty deed whenever we wanted, after all we are married; Molly and Drake were different.
A brother and sister fucking were not exactly what you would call your traditional couple; and while I had suspected the two were more than siblings; our busy schedules had never presented any evidence.
"Nice cock" Devon pointed out, just as he shoved his deep into me.
"Nice ass" I moaned back, shoving mine hard back against him.
"I bet you would love to have it shoved up your pussy" Devon's hot voice echoed in my ear.
"OH God...Devon" I grunted back.
"Your son's hard dick pounding into you" he teased me.
I looked over my shoulder and could see him staring down at the pair below us. I knew what was going through that perverted mind.
"You want to fuck that tight little teenage cunt, don't you" I hissed back at him.
"Fuck yeah" Devon grunted as he slammed harder into me.
"Fuck me you incestuous bastard" I growled.
"OH God...can't hold..." Devon groaned as I felt his cock swell.
"Not yet" I rumbled as I turned to watch the pair below us.
Devon had matched his strokes to the movement of Drake's hips. I was watching my son fuck his sister, while I felt his cock inside me. I watched Drake's face twist with lust, and he reared back.
"Now" I moaned. "Fill me baby" I told Devon.
I watched as Drake shuddered through his orgasm below us; while I felt Devon's hot seed filling me. It was as if I could feel my son pumping his hot load deep inside my belly; God did it feel good.
As I watched Drake and Molly collapse onto the lounger below us, I pulled away from Devon; I felt a thick wad of his seed ooze from between my lips and cling to my thighs.
"You know what we need to do" Devon said softly as he stared at the exhausted couple below.
"I am already planning on it" I said calmly.
I walked to the bathroom, dripping hot cum the entire way. I turned and looked at my husband; I could see the same lust in his eyes I felt in my belly.
"I plan on that dick being planted in me by the end of the week" I said. "That little vixen down there...is your problem." I smiled and headed into the bathroom.
I don't think either Drake or Molly even knew they were 'under assault' and by the time they started to figure things out, it was already too late. I switched clothes, not to something for the yard like I had been, but this time to a thin pale tan baby doll; minus the panties.