amphisexualbioquarious 

Sexually attracted to sapiens both on land and in water.

Seamus: Dude, did you hear Charlie had sex with a mermaid?
DaQuan: Yeah bro, she was so pulchritudinous!
Seamus: But I thought he was into humans.
DaQuan: He is. He is amphisexualbioquarious.
Momin: So he's not just gay?
DaQuan: No, he's not amphihomosexualbioquarious!

amphisexualbioquarious by Brandt Creeper March 20, 2019