Hosting My Gf Mom

My girlfriend Kelly mom moved in with us for a while. She is waiting on her townhouse to be finished it should only take a few weeks.
Me and Kelly met in college we are engaged. She is beautiful petite brunette with a killer body and beautiful face.
I've met Beverly or Bev twice. She is a free spirit funny open woman .
She is 63 about five foot five. She has a few wrinkles around her neck and cleavage. A few crows feet. But outside of that she has a body like a barbie and a face that looks like she is in her thirties.
She is a hot older lady who looks half her age.
After a week I noticed nightly she wears a a blue lace partly see though nighty that stopped mid thigh and a pair of tan nylon stockings. She swears it keeps her legs looking nice. She is a little flirty and open her daughter finds it cute.
A few times she has given me sex advice to use on her daughter. I did as she prescribed and it did drive Kelly wild.
It was on a night were we had been drinking all three of us Bev gave us both sex advice to use on each other openly In front each other. We tried it we liked it.
Kelly got asked to work a double her swing shift and a graveyard shift. She agreed. A employee is sick and she covered her shift.
Me and Bev had a drink together as she had on her night clothes.
We get to talking on her topic of sexual advice. I'm looking at her breasts and legs. Her light brown hair hanging down her neck and back. I have a hard on looking at her from foot to thigh and up her body.
Mid way through what she is saying she shocked me.
I get off rubbing my snatch listening to you two fucking. While your having sex I'm touching myself thinking about how big you must be.
I am blessed large eight inches of big white cock five inches thick fat mushroom tip.
I'm mid way through making us a drink. I unbuttoned my shorts no underwear.
I walk over losing my shorts right in front of Bev. My long dick laying over my huge nut sack.
My thick cock dangling in front of her. I kicked my shorts to the side and sat in the couch Bev still in the easy chair.
Jaw dropped she sat up looking at me with a smile. Good girl Kelly she said out loud.
I patted my lap and she sat on my lap we sipped our drinks while I kissed the back of her neck and lightly choked her.
She started off I better.
I cut her off my hand inside night gown cupping her large tits. No no no Bev you better sit her and keep my dick hard I said in her ear. She let out a little gasp and moan. It stays between us but I'm going to make you cum tonight you old lush. She froze in place what Bev muttered.
I'm going to put my cock in your snatch and let you cum on my cock.
You need it don't you
You want to be on your back with my cock between your legs don't you. She nodded her head yes.
Good mother in law
You want this dick don't you I asked.
Yes she said .
My hands find her open panty less pussy her stockings crotchless. I rubbed and massaged her pussy before getting my fingers into her. She loved it tilting her head back moaning.
It takes no tim at all Bev is on her back I'm between let legs and my cock feeling her loose sloppy pussy engulf my cock she lets out moans that over lap as every inch sinks into her.
Your so big she moans out.
I fucked her showing giving no fucks. I keep just pounding it into her tits bouncing soft purring moans. She keeps telling me how good it feels I stick my thumb in her mouth for her to suck on. Her tits in my other hand and my cock plowing her.
You like my cock I ask her.
Mm hmm she moans sucking my thumb. No condom my cum is going to shoot into you. You want my cum Bev. Oh yes yes yes cum in me she cry's out. So I do I feel Bev pussy clamp on to my cock as I pump my cum into her. The next two rounds of fucking Bev I did the same filled her with cum . We finished our drinks went to bed.
The next day Bev slept in and Kelly had the night off.
Her and her mom never spoke a word of us fucking.
She just told Kelly the same as she told me she gets off on listing to Kelly and me having sex.
They have I guess always been open sexually about things like this.
When I got home she told me how sexually starved her mom must be.
She said if it was not so wrong or weird she would ask her to join .
By week three Bev did join us in bed on a very spontaneous action.
I got off on Kelly sitting on Bev face .
My wife got her pussy ate by her extremely well versed mother while I fucked her mom.
I still can't wrap my mind around what happened but I went with it and enjoyed it however this shines a whole new light on my fiance and her dirty side.