Messing with My Crazy Mom

*NOTE: THIS STORY IS COMPLETELY FICTIONAL!*

I took my Mother down to the psyciatric ward to be evaluated. She had started to act funny. All of the sudden she started to believe everything she heard. She was very gullible. Like if I told her that she had a dick, she would have to look down her pants to make sure she didn't. So they evaluated her and decided that she wasn't crazy enough to be given medication or taken in for special care, so I took her home. At the time we lived alone, my parents were divorced and my older sister was in college. I was 18. When we got home she did what she usually did, she could still function, she was just a very trusting person now. I went in my room, sat at my computer and played some porn of girls rimjobbing eachother. It had been a few minutes, my pants were around my ankles and I was jerkin' my big meat, when my mom walked in (I didn't have a lock on my door).
"Dinner." She said.
Then she noticed what I was doing. I pulled up and pants and quickly excused herself and walked out, closing the door behind her. I had to take care of the situation. I could have just told her I was checking for cancer, she would have believed anything I said, but that was too easy, plust I was still horny. My mom was standing at the stove and I walked up to her.
"It's ok mom, since I walked in on you yesterday, we're even."
"You walked in on me yesterday?"
"Yeah don't you remember? You had just got out of the shower and you had not clothes on and I saw you and said that you have a very beautiful body."
"You think I have a beautiful body?" She said blushing.
"Of course! You're a hotty mommy."
I began to caress her milky white thighs that were exposed by her high cut off shorts.
"You want to make love to me mom."
"Of course I do."
Then we just started making out and slobbering all over eachother. My mom's name is Aviva and she's 43, looks like shes 30 and is pretty tall, about 5'10'', really skinny, only 115 pounds, she has long black hair tied into two pigtails. She had little petite, but nicely shaped tits, a big bump of an ass that would drive every guy wild and butterfly tattoo above and to her right of her hairy black haired, loose lips, pussy. My name is Mark and I'm just one inch taller than my mom, 5'11", also really skinny, 120 pounds, I have long dirty blonde hair. I had a hairless chest and bush surrounding my 7 inch, super thick dick. I had an ass like my mothers, it was hairless, none on the inside or outside. I took off her black tank top and began to feel her bare skin, with only a white bra covering her playful tits. She had ripped off my shirt with out me even knowing and we were both working on trying to get eachothers pants off, while still sucking on the otherone's tongue. Mom had worked off my pants to reveal my striped boxers, while I started to pull off her short shorts to find matching white panties. We had made it to the living room and jumped on the couch. She was on top of my licking my chest and I manuevered her bra off. I started sucking on her already erect nipples on her supple breasts. Aviva began her way down my body and managed to get off my underwear so she could see my big sausage.
"I want you to fuck me." She said.
"Alright, but I'm on the top."
She laid on the couch on her back and I slowly and carefully pulled off her panties so I could finally get a glimpse of her buried treasure. I was on my knees and aiming my dick at the entrance of her snatch. I started to slowly put the head in while we both moaned.
"fuck me hard baby."
I shoved my whole package in her and started to furiously thrust back and forth. Her tits were bouncin' up and down and my balls were slapping her asshole. I was feelin' up her tits when I began to feel my climax come on. I was sweaty and so was she. I began to pump faster, causing her to scream out a loud moan.
"OHHHHHHH GODDDD! FUCK MY pussy hole! HOLY SHIT I'M GOING TO CUM!"
"UH UH UH UH!" I moaned.
We were both screamin at the top of our lungs when we swapped body fluids. I pulled out my cum covered dick and collapsed on my Mom. We slept There on the couch, with come still on our stuff.

Stay tuned for the next issue when Mark and Aviva does some more fooling around and dear old sister comes home.