Got a couple to share.
I played with my high school girlfriend's hair all the time when we dated. Her hair was just about butt-length at its longest, shiny blonde, naturally wavy and pretty thick. She knew how much I loved her hair and loved letting me play with it. It used to turn her on almost as much as me. She wasn't the biggest fan of hairjobs (it was hard for her to get my cum out of her hair) so I cherished the few times she did it, mostly on my birthdays or on Valentines Day one year. Sadly we broke up after a few years, and she's since cut her hair to just past her chin.
Second story is with a friend of mine from work a couple years ago. She let her hair grow out during the pandemic, so by the time I met her it was past her waist, light brown, and insanely thick and curly. We worked together at a supermarket, and I'd always tug her hair when I passed by to kinda tease her. She eventually told me she liked it and could tell how much I liked her hair, so she'd let me play with it whenever we got off work and hung out together. She'd lay her head in my lap while we watched movies or played video games, and just let me have at her hair for as long as I wanted. We hooked up a few times, and I did get a few hairjobs from her, but we both eventually moved on after I left that job and she met a new guy. We're still pretty close, and her hair is still as long and thick as ever!