Steamroom Finger bang

A few weeks ago after working out I had gone to the steam room to relax. When I got in there I had the room to myself and had taken the spot away from the door and was just relaxing. I was a bit horny and bored so I put my hands down the front of my swim trunks and was fondling myself for several minutes when I heard the door open and my hand got caught in my trunks for a moment but I got it out and in walked this older black lady. Because of the steam I was unable to really get a good look at her but she was a middle aged heavier lady average looks decent tits.
She had taken a seat not to far from me and we had engaged in a bit of small talk when she told me next time I should lay a towel over my lap and it won't look so obvious. She than told me if I wanted I could go ahead and finish and she would like to watch.
So after a few moments of awkwardness I pulled it out and slowly starting jacking myself while she watched. I than watched as she pulled her suit to the side a started to rub her clit and fingered herself. After a bit of mutual masturbating she got up and walked over to me and asked if I needed a hand. She took over and started to jacking me and I reached over and was fingering her cunt with 2 fingers.I had manage to bring her to a couple smaller orgasms before I finally blew my load. We cleaned up using her towel and chatted a few more minutes before she got up and left and she turns and says to me if we see each other again we will have to repeat it and asked if I could get rid of the towel since it was more my mess and laughed. I have not seen her since.