Ant-man style is when u shrink into insect size or a tiny atom till the point where you will fit in the insect or creature and perform intercourse
This can be called many things like:
Ant-man Style
The Atom Style
Honey, i shrunk myself to fuck a bug style
The Ant-Lover
Insex
The list goes on.
I'm so horny i can fuck a ladybug Ant-Man Style.