Masturbating rest stop slut :)

This afternoon I was super horny. I stopped at a rest area about 20 mins from home and read a few naughty taboo stories on this site; I knew that i was going to masturbate and all that was in question was where...either in my car or in the restroom. I toyed with the idea of being more directly watched but it was very empty there. I have done myself there before in both ways lots of times prior so I trust that I can control what happens.
My favorite, as far as solo play, is this: the bathroom door is always left propped open there and I know that sound travels VERY well! I pick a stall from which I can see if anyone comes into the womans room. As soon as I lock the door, I pull up my top and start to roughly pinch and pull on my nipples. Sometimes I rub them against the cold tile wall as if I am being pushed against it. I then slide down my pants and my fingers instantly enter my always wet pussy and hump them in that position until I am close. Then I sit down on the toilet, spread my meaty thighs wide, use my fingers to open my pussy wide and pee. I LOVE hot pee on my fingers when they are holding my cunt wide open! So nasty/erotic! Once my flow is really going, I furiously finger my cunt and rub my clitty. If I time it well, I can cum before I am done pissing. Oh yes...I nearly forgot to admit that I am not quiet when I am pleasuring myself there! I know that I have been heard before and feel the eyes on me as I slowly walk back to my car. Yes I have been approached but haven't taken that next step as that feels unsafe to me.
It feels amazing to post this and share this! Am I alone in this need? what would you do if you heard me?