Not a word but two- Make love.
I can't stand it as an expression for sex. I don't much like it within personal relationships, but clients saying it?! no no no! We are most definitely NOT making love *cringing just typing it*
Also hate bb, baby, babe and hun. I don't really like it when girl friends say it to me, but I can cope with it, clients using it make me shudder.
Also dislike fanny.