[Many thanks to editor Bigr1856 for his advices and editing assistance with this story.]
Part 1: Rita
I am a lucky man. The morning when my life changed forever I woke up with my wife Rita riding morning wood that rages during that brief time between sleep and consciousness. I was having a dream about a high school teacher who had huge chunky boobs, always exposed in some form of cleavage. At the time I used to ogle them like a pervert, especially when she was walking around the class-room jiggling them in front of me.
While I was drifting through the images of her in my mind I realized something was going on outside the dream, but I didn't want to wake up. A few minutes went by while I was in a weird yet pleasant no-man's land, half-asleep, half-awake. I slightly opened my eyes and the first thing I saw was Rita's meaty butt right on top of my cock. Rita has one of the juiciest and thickest butts I've ever seen. I love big, fleshy butts, and she has a lot of flesh in that department. She is so curvy I get hard just thinking about her. She was slowly riding me facing the opposite direction, completely naked. What I was feeling in my dream was actually coming from the outside world! All of a sudden, I was invaded by the warmth surrounding my cock and by the sensual sight of my wife's ass. My body reacted accordingly. I felt a huge throbbing of new blood as it pulsed through my cock. Rita felt it too, because she moaned as my cock unexpectedly expanded some more inside of her. I felt my thick throbbing boner enlarging and pushing against my wife's vagina walls. Rita moaned, moved a little, and then plunged herself down again, but very slowly. She released a slow motion moan as she was going down, widening her legs a little bit. Her hips were very inviting, with all that opulent rotundity, but I stopped myself from grabbing them. I just wanted to see where she was going.
Her small waist made her huge butt look even bigger than what it really was. Which measures like 40-28-50, Rita has that sexy hourglass body I always admired, with the waist of a top-model but the ass of a Big Beautiful Woman. Well, I guess top-models have skinnier waists these days, but I'm sure they don't enjoy sex like Rita does.