If by parasite you mean "sexy moth lady fucks me senseless with her ovipositor and I give birth to adorable fluffy caterpillars 6 months later," then yes.
But something tells me that's what you're not talking about.
I love parasites with external parts. Something the host can grip but not get off, having to hide it from others. Plus parts of the body being decorated by the parasite/s is sexy itself.
External parasites can be fun if they do something to either feed off or control the host. That said, my absolute favorite is body invasion stuff where a bug, tentacle or slime crawls inside while the host is awake. Maybe it lays eggs, maybe it just sets up shop and keeps growing inside her.
I mean I thought the anime was alright. great concept but the main character’s personality change in the middle of the season ruined it for me. The sudden flip from a nervous shut in to a stoic edgelord was too sudden and I had to drop it. I had fun so give it a watch if you want but that’s how I feel about parasyte