Accidentally saw my dad and stepmom having aggressive sex

I am 24, and I obviously know that they have sex, but I just accidentally saw my stepmom and dad having weirdly aggressive sex in my dad’s car ..

We were getting drinks at a bar with a couple other friends of theirs and the night was winding down— everyone was walking out and I wanted to take a quick pee before I drove home. (My dad and stepmom drove separately to meet me at the bar)

I was in the bathroom for a hot second because it’s a Friday night and you know how bathrooms are, so I leave probably 10 minutes after I saw them walk out and when I’m walking to my car I saw that my dad’s car was still parked with the lights on. I figured they were just gabbing or pulling up directions and hadn’t left yet (obviously). So I walk up to the passenger side window to give them a wave and kinda acknowledge that I’m leaving too, when I see them FUCKING in the backseat (and kinda aggressively lowk but just giving context).

I immediately retreat and start walking past them to my car, but I couldn’t tell if they actually saw me or not.

I’m so embarrassed because I want them to KNOW that I know and have them feel a little shame about it (because Jesus) but I’m like well I’m an adult and have had great car sex so who am I to judge?

I just can’t fucking get the image out of my head and I know that sounds childish or dumb or WHATEVER but it made me realize that I’ve never accidentally stumbled in on my parents and so I guess it’s valid to feel the way that I feel??

Do I jokingly acknowledge it or pretend it never happened and bury it inside?? I just want to forget tbh

I’ve been having severe anxiety since it happened and I can’t think clearly about anything- I have a very complicated relationship with my parents after many years of emotional distance and feeling victim to their narcissistic behavior (this isn’t an example of that, just giving context) but I think I need someone to tell so … yeah