My girlfriend has slightly wavy blonde hair down to her bra strap. I'd say the texture and thickness is medium. She knows of my fetish and she has given me a hairjob when she is in the mood. Sometimes I cum in her hair and other times I don't. It depends on her mood and I respect that.
My girlfriend and I have a close friend with the softest head of hair I have ever felt. Her brown hair is down to the middle of her back and it's incredibly fine and soft. I can't stop playing with it. She also knows of my fetish and gave me a hairjob when I was at her apartment helping her with some computer trouble. I hate to admit it, but she has better hair than my girlfriend. We made plans to meet at my house at a certain time twice a month for some kinky fun together. My neighbors don't care because the closest house is a half a mile away. Ah the perks of living in a rural area. My girlfriend won't know because she will be at work.
My girlfriend has a sister with long straight blonde hair down to her waist. It has a medium thickness and very soft. I have played with it a few times and she doesn't mind. I love her like a sister. On occasion, her hair has gotten caught on my bracelet and I have had to untangle it. My girlfriend is active in the Special Olympics and I have played with her sister's hair during regional competitions. I often fantasize about a hairjob from her, but I don't want to cause too much trouble. Another day perhaps.
My older sister has a friend with slightly wavy brown hair down to the middle of her back. It is similar in texture to my close friend's hair. I love playing with it and she doesn't mind at all. I was at her house helping her get a new TV installed and I played with her hair while the TV was going through a software update. No hairjob this time, but maybe someday.