Geez, there's much t'love there.
The way she anticipates excitedly where she's gonna be tickled.
The thrilled laughter. It's tone, timbre and feel.
I love the twisting in an unbound wrestle, when she's trying not to fight, but has difficulties with the unconscious reaction.
When she can hold herself still and just laugh, explosively for a long time, it's thrilling beyond words.
I love how her eyes widen at points, and squeeze shut at others.
When bound, there's a whole different gamut of responses.
There, I delight in the things she says, both in actual requests and in the speaking-in-tongues that inevitably occurs after a long enough time.
I love the way her hands move, unconsciously speaking their own language. The curling and splaying of toes, from little fists to wide spread digits. The arch of a back or twisting sideways, again unable to actually prevent anything, but, consciously and unconsciously, trying to escape what she wants, 'cause I tickle 'lees. No one bound is unwilling in my play.
There's a 'lee whose sound, scent and feel particularly delights me. She lasts long, bound and unbound, and never seems to tire of the play. Likes harder touch until she's laughing, at which time light fingers tease more responses, like pouring sand between large stones. She arouses when tickled, and there's a subtle pheromonal response you can perceive. Nerves sing in me with her response. It becomes all about those responses.
From ears to toes, with fingers, tongue and teeth, the responses, verbally and physically, are bliss.
Even the heat of her skin is thrilling.
It's too long a list of descriptives to fit reasonably in a post. *shrug*