I get to play out my long hair fetish together with another fetish of mine with my partner.
Two things about her drive me insane.
My partner has hair down to her butt. Dark brown, thick, soft and fluffy. Just seeing her hair gets me hard.
My wife also has nice big tits, with a nice big areola on which sits her large nipples which are super sensitive. And even more so, after we got her left nipple pierced.
She loves me to do to 2 things with her hair/nipples:
1. For me to gather her hair in a lock of about 0.5cm in diameter, slip it through her nipple ring, and gently tug on it, thereby pulling at the nipples.
2. To ensure her right nipple is not left out, I will take the same lock of hair, wrap it around her right nipple, and squeeze - "strangling" her nipple with her own hair.
For both of the above, when I complement said actions with my tongue on her nipple, sucking and licking away, it accentuates the sensation for both of us and she can come just from having this done.
And when she does, to return the favour, she let's me do anything I wish with her. Including rubbing my dick in her soft hair. I have not come in it yet though.
I'm trying to get her to grow it longer so I can put the ends in her pussy and tickle her with it. That should be fun.