What Causes A Thick Hair Growth In The Scrotum?

I'm a 19 year old male. I masturbate around 5 times a week and I'm still a virgin.

I recently noticed some weird hair on my testicles. They are very similar to "coconut fibre" in color and texture. This is the first time I noticed something like this. I had normal hair before and I used to shave it.

I' really worried and I find it too embarrassing to talk to my parents and doc about it.