[M] In sauna lockerroom with mature lady

Just to get this out of the way… i didnt go to the sauna to be a creep or anything, this just happened by accident.

Last week after soccer training a friend and i (m20) went to the sauna to relax. After about 2 hours he had to leave so i decided to stay on my own, since i was enjoying it a lot.
Not much was going on there… maybe like two other old guys and a lady. The guys were in the steambath and the lady in the resting area i think. After a while i had enough and went to change.
Where i am from sauna are only nude with towel, so i got up and put the towel around my waist, showered off and went to the locker.
It was mixed since there was only one and one of the guys just finished changing as i entered.
Not thinking much i took off my towel and started rubbing my hair. After a few minutes the locker door opens and the lady comes in. Im guessing she was mid 40s.
Her locker was a few feet next to mine so she was standing kinda close.
I already have a thing for milfs and voyeurism so you can guess how i felt.
She took off her towel and started drying off aswell. I could feel my dick instantly growing, while taking a peak over. She had an average body for a 40 yo with bigger titts but it still was frickin hot. I was embarrassed but also wanted to make it last so i took my time drying off.
Im pretty hung (almost 8 inches) so by the time i was full on hard i knew she had looked over a few times.
(Writing this alone make me hard all over again)
It felt like we were both taking our time, while i conveniently turned my hips in her direction a few times.
Before any precum could drip out i but on my boxers got dressed and left.
We never spoke or made eye contact but it was still one of my hottest experiences somehow.
I kind of wish it would happen again.
Anyone of you ever had something like this happen?