I suggest reading parts 1 through 3, but it's not necessary.
"Hold on." I sat at the table with the beers and a large bread knife. As I carved into the sandwich, I felt I had to correct Syd. "Before we sandwich you, I need to pay some attention to this lady."
My wife swallowed some beer. "Me?"
"You're the only one who hasn't cum yet."
"That's not true. When you ... "
"I know you take special pleasure from deep throating my cock and swallowing my cum." I caressed one of her nipples with the back of my knuckle. I saw her eyes flash. "But it's not really the same." I took a drink of cold beer, then leaned down to kiss the other nipple. "Is it?"
"Oh my. Um. No. Not the same. You win."
Sydney fanned her face with a paper napkin, putting on a very thick accent. "Why, you young'uns, I do declare. You're apt to give me the vapors right here."
"What are the vapors?"
"My Lordy, all I know is that I'll have to reupholster this very nice chair when you're done."
I took a bite of the sandwich, trying to look pensive as I chewed. My wife tilted her head as she asked, "What are you thinking?"
"Only that it would be easier to change the sheets on Sydney's bed than redo the furniture."
"It would, wouldn't it?"
Syd sat up straight. "Now hold on. You two have a perfectly good bed at home."
"But we couldn't have the lights on at home."
"Very funny, but ... "
Before Sydney could finish the thought, my wife grabbed my hand and we ran to the bedroom. Not bothering to close the door, we leaped onto the large king-size. I rolled on top of her for a good kiss.
Sydney cast a shadow in the doorway. She flicked on the switch, illuminating her naked body as well as our own. "Well, now that y'all have the light on, what do you intend to do?"
My wife looked up at me expectantly. "Hm?"
"First, I'm going to kiss you some more. While I'm doing that, I will start caressing you. First your face, taking your cheek in my palm with my thumb under your jaw. Like this"
She sighed. I heard Sydney flounce (there's no other word for it) onto the chair at her vanity table.
"Then I will let my hands wander: your throat, your back, along your arms. All very lightly. Followed by my mouth, blowing a soft, warm breeze along your skin."
I felt more than saw the goose flesh creep along her arm.
"Eventually, not too quickly but eventually, I will move my attention toward your center."