They start on land and climax in the water
I am certain they would prefer it to be in the water. If they had sex on land it would have to be a quickie.
COnsidering the way the body is made,like a fish she lays eggs and then the male comes along and fertilizes them. Of course since sex is more than intercourse, the foreplay part has to great since hte finish lacks a little. That is probably done in the water which gives watersports a whole new meaning.
I know nights when my setdown routine did not work and I laid an egg. And I am not even a mermaid. Nor a merman.
On land! How else could they spread?
I'll find out when I go to Ocean World.
water, like fish
Both....need to change the scenery every now and then
Mermaids can't have sex, they got no naughty bits lol