Best summer job EVER! part 2.

If you’ve read the first part of this story then you’ll know that I managed to snag myself the greatest summer job known to man. My job was to please my next-door neighbor, Mrs. Cindy Farbenn, in any way that she wanted. 
By this I mean that I would fuck her until she’s so happy that she can’t even move.
Hi, my name is Jake Hamilton.
I am sixteen years old and for the past two weeks I have been going over to Cindy’s house every day and having the most amazing sex.
 This is the story of how our double act was joined by another partner. 
Enjoy!
It was midday and, as usually happened at that time, I was getting some unbelievable head from the sexy seductress Cindy. 
I gazed down to the beautiful busty vision who’s head was sliding up and down on my hard 7 inch long shaft, sucking vigorously. 
God, the inside of her mouth was like heaven, warm and wet, her tongue curling along the tip of my cock, giving the slit a lick every now and then. 
As her lips glided up the length of my manhood, she looked up into my eyes and gave a lustful wink I grinned at her and moaned from the pleasure her blowjob was inducing. 
As she reached the end of my cock, Cindy wrapped her lips around the head and gave it a tight kiss, sucking intensely while simultaneously jerking the shaft with her left hand and playing with my balls with her right hand. 
I couldn’t hold it in any longer. 
The pure bliss of the orgasm spread from my balls up to my body, running through me like electricity as I felt my dick throbbing and pulsing, sending spurts of my hot teenage seed all over Cindy’s hot, voluptuous body, coating her mouth, chin and the tops of her heaving breasts with my spunk. 
As time slowed down again and I came back down from the orgasmic reverie, I watched as Cindy licked her luscious soft tits clean, looking at me as she did so.
 “well done, Jake!” Cindy said. 
 “I’m impressed with all the effort you’ve been putting into work. Go take a shower and then we can get to work on cleaning the gutter.” 
(the gutter- her pussy. That’s her code for when she wants a good fucking from the front. 
Sweeping the attic was code for oral, wether it was her blowing me, me eating her out or us sixty-nineing.
Tidying the back yard was the not-so-subtle code she used when she wanted me to plow her tight asshole as hard as I could. 
I was already naked so I just headed upstairs to the bathroom. After I stepped out of the hot water and dried myself off I exited the bathroom, still fully nude. 
As I started making my way downstairs, I heard the front door opening and someone entering.
 I didn’t remember hearing Cindy leave. 
I hurried down the foot of the stairs just in time to see Cindy’s daughter, Natalie, walk into the house. 
She was 22, blonde and absolutely stunning. 
She was taller than her mother, and slimmer around the waist but her breasts were fantastically shaped D cups.