Crippled by shyness, the 40-something professional can barely look Fern Arden in the face as he talks about still being a virgin at such an advanced age.

“Don’t worry,” the Manhattan sex therapist tells him. “We can work on this.”

If the doctor’s voice sounds confident, it’s with good reason. Arden is the founder of an exclusive private clinic off Central Park West that provides a very specialized type of treatment for psychosexual problems like this one.