Ejaculate, vagina, gland, penis, mammary, "sexual intercourse," blond, and "10 inch cock."
Don't get me wrong, I have nothing against blonds, it's just annoying how women are almost always described as blond in erotic fic, and guys always have a 10 inch cock. If I am reading a story and the author goes into a looks spiel, I skip a paragraph or three and gloss right over it.
I also have nothing but contempt for: "throbbing tool," "love canal," "his/her member," "his/her sex," and "box" (when used in reference to pussy). Seriously, are you writing porn for kindergarteners? No? You're writing porn for adults? Ok then; do everyone a favor and use adult words. Kkthnxbai.