Goth brunette teen fingers her pussy in public till she squirts

So I was sitting outside waiting for my friend to come so we could grab lunch together. This goth brunette teen obsessed with public masturbation approaches close to where I was. a few minutes later, she feels horny. She then squats down, takes off her pants, and begins to finger her pussy till she squirts. The funny part of all this is that I could not take my eyes off her while she was squirting.