After the coffee shop, Follow up!

I've posted a couple of stories you may want to read before this one.

G and I continue to meet regularly, coffee shop or bar, if we can we play but if not just chat. She likes the idea of dogging, but I'm not so sure! Should we?
I get a call from A, her mother and a long standing friend, asking me to call in when next close by. A couple of days later I call A and say I'm on my way, if she's in.
She was and my coffee was waiting. A is a big lady, just over 5ft and has to be a size 20 or more. Great sense of humour and we talk about anything and everything. It's a platonic relationship or was.
We're sat in the lounge, the scene of G and I having our first sex session, when A tells me she's had to install some cameras around the house as stuff keeps going missing and she's sure the neighbours, who have a spare key to feed the dogs when A's away, are letting themselves in.
We discuss this for a while and the conversation moves on to me decorating the stairs and how grateful she is. She hesitates, looks at me and said, I know how grateful G was as well!
I looked blank, not understanding, then A looked up at the top of the bookcase and said, is it wrong for me to get turned on by my dear friend fucking my daughter? I've watched the whole thing many times.
We'd been caught, I didn't know what to say. I was numb. A continued, so, is it wrong for me to be turned on by it? I managed to reply, I wish you'd never seen it, then you wouldn't be asking. I don't know if it's right or wrong but I'm not going to apologise. We had, still have, fun. G's happy, I'm happy and you know C can't give me what I need at home.
A put her hand on my knee, I don't mind you and G having fun, but from what I've seen I want some of it too.
I want you to make me cum like you made G cum. I want to ride your cock, like G rode yours. I tried to say something but she cut me off. This isn't a one off, this will be a regular fwb relationship where I get to cum with a man and you get to fuck a women in need. You can carry on with G, but she's not to find out we're doing the same, deal?
I didn't know what to say or do come to that. I sat motionless staring at the not so hidden camera. I eventually turned and looked at her and said, and the consequence if I say no? None really, she replied. I'll not tell anyone, but you won't be able to come here again. We'll still meet but you're not be able to carryon with G here. All I want is for you to satisfy me every couple of weeks or so. I know I'm a big women, but you're no model either. I just need to feel a man inside me, feel wanted for a while and you can do that, for me, can't you?
The thought of having sex with a good friend, possibly ruining that relationship was my main concern. Followed by her size. I'd been with shapely women before but not like this, or so I thought!
We got another coffee, and A took the lead. You're still here, so I'm assuming the answer isn't no! With that she stood up, took off her jumper and bra and let her huge tits hang in front of me. They didn't really hang because I later found out they are pretty firm.
She moved forward, pushed them in my face, I sucked on a nipple, gave a little nip and she pulled back. See, not so bad is it?
She pulled at my polo shirt, threw it on the ground, pulled me off the sofa so we were both kneeling the floor and she hugged me, rubbing her breasts against my chest.
She whispered, you're going to make me cum, like you did G. I want to cum on your tongue. She stood, removed her leggings and knickers exposing her hairy bush. She took my hand and held it against her bush, started to make me rub it. I could feel her warm moist pussy lips.
I looked up and rather than seeing a fat women, she was remarkably toned. Yes, chubby but not the rolls of fat I was expecting.
I told her to sit on the sofa, spread her legs and let me play. I continued to rub her pussy, she was getting wetter with every rub. I had to push a little harder to get my fingers inside her but when I did I could feel her body tensing as if ready to cum. I stopped, put my head between her thick thighs and feasted on her dripping pussy. Her clit was swollen already, I sucked on it, she exploded. She didn't just squirt but gushed on my tongue and fingers. Pushed my head into her bush. I kept sucking, kept playing, she gushed again. I stopped, let her recover.
After a few minutes, she said she wanted me to fuck her like I had G, doggy style. She wanted to feel my warm cum dripping down her leg.
She turned round, I dropped my trousers and pants, realised my cock wasn't as hard as it could be and looking at the widest arse I'd seen naked didn't help.
I reached under A and played with one hand while wanking with the other.
With her being so much shorter than me I had to squat down, rest my knees on the sofa edge to get close. I tapped my cock on her arse, rubbed it down her bum crack, pushing gentle at her bum hole before entering herpussy. Her pussy lips swallowed my cock, but with her arse being as big as it was, this position wasn't going to work. I could just get my bell end in, no more. I turned her round explaining why. I lifted her legs, pushed them backwards so the were touching her shoulders, exposed her pussy. I knelt down, licked everything paying attention to her clit. I was hard now, with her exposed pussy, stood and slipped my cock into her.
She was so wet I slipped in easily, I pushed hard got my balls banging her arse, the sounds were wonderful. It wasn't long before she came again, quickly followed by me!
I stood back, looked at the mess on the sofa and floor, and thought I never saw this coming.
A was done. She'd sat up, cum dripping from her, she slid a couple of fingers between her pussy lips, cupped some cum and sucked her fingers dry. For sum reason my cock liked this and was starting to harden again. A saw this, took me in her mouth, squeezed my balls and gave me a wonderful bj. I came, she swallowed!
I sat down beside her, asked have you been planning this for long? Oh yes, about 15 years! And now I have the perfect excuse to have you cum round on a regular basis.
It's a lot of men's fantasies to be having g a relationship with both mother and daughter, but A and G are so different, not just in size or looks. Their personalities are miles apart. One things for sure, I'm getting more sex than I have in years, what with these two and my two neighbours!