A small excerpt from my story "The Tickle Researcher":
In one of them, there was a short gym bench with a love swing hanging over it. I helped her into the leather slings that held her thighs and tied her wrists behind her back. The dangling legs received broad leather ankle cuffs, then I fixed them with short chains to the thigh supporting straps; her feet pointed backwards almost horizontally, her knees were bent so much that her heels almost touched her buttocks.
Now I lay down on the gym bench and slipped my head between her thighs. Gently, my hands parted her labia to give my tongue free access to her most erogenous parts. As skilful as I could, I started to eat her out. The intense tickling had already aroused her considerably, so it was easy to get her over the brink quickly: she had her first climax!
Then I moved upward on the bench until she hovered above my loins. “Are you ready?” I asked her, and she nodded, still highly aroused. With one hand, I guided my best friend into her hot, moist prison. My other hand touched a switch beside the bench, and the swing descended a few inches. She was impaled on my penis now, unable to move her body the least bit as the bondage provided no lever whatsoever.
I pumped my hips back and forth, and she threw back her head in delight. But then the real action started: Both hands tickled her ribcage and tummy, and she had to laugh out loudly. At once I felt her internal pussy muscles tighten in convulsions, similar to an orgasm. But we hadn’t got that far yet; I continued to tickle her upper body intensely. She would have liked to hop up and down on my lust pole, I clearly sensed that, but she managed to move only a few millimeters. Not enough to satisfy her crave. But there was a lot of internal movement in her pussy, and she seemed to enjoy this as well. Her laughter was intermingled with deeps sighs and moans.
Because of her tightly bent knees, my hands were able to reach her fettered feet. The tickling there had her in more intense twitching and writhing, not to speak of her laughter. My own arousal spiraled upward as well, my hips bucked faster now. Just a few more minutes, then she was ready. Her guffaw became hysterical, her face had blushed deeply, and she climaxed in screams. I deliberately held back my own orgasm then, because I wanted to show her something else:
I took up a sharply pointed goose feather and started to tickle her engorged clit before her climax was over completely. My other hand stroked ticklishly across her soles, and she cramped once more. Like mad, she struggled in her bondage and screamed out her infinite lust. Again and again, the feather raced across her hyper-sensitive clit tip, and her convulsions became even heavier. I couldn’t hold myself back any longer, uttering a primeval lust roar I was swamped by my own orgasm, which was immensely intensified by her laughter und her internal muscles contractions.
My feather continued the stimulation until Jana’s lust waves ebbed off gradually. Then I untied her and helped her out of the love swing to embrace her lovingly. She showed her gratitude with a burning hot kiss, and finally she asked me: “Now you’ve got to bring me back to my home, I suppose? Pity, I just started to enjoy tickling. Do you think we can repeat this, some time real soon?”
😎
toe nibbling is soooooooooooooooooooo sexual...When it begins to tickle oh so much, I soon become very excited. Eventually it turns into a WONDERFUL experience! 
Yechhhh! It looks like she's riding a damn Sasquatch 
