What a great question! There are so many really fun tickle stories in our universe. My favorite for today might just depend on the last one I read.
I love "Make him stop!" stories. When I tickle my wife while her mother is nearby my wife screams at her mother, "Make him stop!" My mother-in-law begged along the same lines to my wife years ago when I tickled my mother-in-law half to death.
Some of the clips we see these days have a gorgeous lass looking at the camera and begging, "Make him stop!"
Once when we were in our teens my brother and I were at my cousin's house. One thing led to another, and my cousin's husband suggested that my brother and I capture my cousin, pin her down and tickle her ribs until our fingers got tired. So we did. She probably spent the next eight or ten minutes on her back with her arms pulled high over her head desperately begging her husband to, "Make them stop!"
He was happy as a clam watching us tickle her this way. Every couple of minutes we would stop and ask him if we should tickle some more. My cousin screamed, "No! No! No!" He teased her by saying, "Well, I don't know. Is she still laughing?"
Any story along those lines is priceless.
Another genre we see now and then has the girl in the story as the oldest sibling who grew into an adult while tickling her younger brother and sister without mercy every time she thought of it even though she, herself, despised getting tickled. When she was in her mid teen years she invited her girl friends to help her continue the practice. Then when she starts dating her vengeful brother and sister take it upon themselves to tell each and every one of her new boyfriends how ticklish she is and how much she loves getting tickled no matter how much she protests. Sometime in the story there is a great deal of protesting and laughing coming from the next room.
I have a tickle fetish deep down almost beyond control, always have and hope to for the rest of my life. Still, there is one form of non consensual tickling that I love to read about while it still makes me cringe to the point of trying to protect my ribs with my elbows and upper arms. I've seen maybe half a dozen stories about this kind of tickling over the years. One or two of them might be right here in the Tickle Theater. The maddening thing about it is I sometimes remember the stories but can't remember where I read them and usually can't find them.
These non consensual stories always involve two women living a serious rivalry for one reason or another. They can be sisters, cousins, cousins-in-law or sisters-in-law. The point is they grind each other and denigrate each other for years every chance they get about any and everything from motherhood skills to weight gain to housekeeping skills to the quality of jobs. In time they learn to detest each other while unsuccessfully trying to be civil because they have to be with each other at one event or another all the time.
As they grow older their arguments become harsher including threats and counter threats. Then somewhere around age forty for both of them one of them discovers the other is deathly ticklish while the first isn't the tiniest bit ticklish. This happens perhaps during a loud argument that is about to get physical. The one uses tickling as a weapon while the ticklish one starts to feel pure panic.
The non ticklish one starts pointing and wriggling her index fingers at the ticklish one and walking toward toward her with evil intent saying, "Don't tell me your ticklish." This reinforces the panic in the ticklish woman who starts backing up trying to protect her ribs and tummy while trying to catch her attacker and wrap her up. She can never completely stop the tickler from poking a rib causing her to jump, scream and let go. Eventually the tickler wins the fight, and her ticklish rival is on the floor utterly pinned down and too tired to resist.
This has to be the most devilish tickling there is. The ticklish woman has no way to protect herself. Her tickler hates her and has no reason to show mercy and in fact says, "Now I've got you!" Then she starts tickling.
The part that makes me cringe is thinking about that poor ticklish woman screaming or trying to scream and begging for mercy or trying to beg while she is being forced into laughing and laughing until she is exhausted by a woman she literally can't stand.
When the tickling finally stops she has to lay there too tired to move knowing her tickler can attack again any time she likes.
The best one of these I ever read had a sister-in-law saying to the tickled woman, "Say, don't we have a reunion coming up next month. I look forward to seeing you there."
I've never been a proponent of non consensual tickling, and it says right here: That kind of tickling hurts to think about!
Still, it makes a great story.