The term sex industry refers to those commercial enterprises which employ sex workers. What they offer is called adult entertainment, as it comprises a number of forms of entertainment not considered suitable for children.
... (tongue against teeth, like Spanish) (t, th, d, dh, n)
Labial (with the lips[?]) (p, ph, b, bh, m)
It also has four semivowels: y, r, l, v. All of these but r ...