An old one but its always a good one

A man boarded an aircraft at London's Heathrow Airport for New York, and taking his seat, he noticed a very beautiful woman boarding the plane. He realised she was heading straight toward his seat and bingo - she took the seat right beside him.

"Hello", he blurted out, "Business trip or vacation?"

She turned, smiled enchantingly and said, "Business. I'm going to the annual nymphomaniac convention in the United States."

He swallowed hard. Here was the most gorgeous woman he had ever seen sitting next to him, and she was going to a meeting for nymphomaniacs!

Struggling to maintain his composure, he calmly asked, "What's your business role at this convention?"

"Lecturer," she responded. "I use my experience to debunk some of the popular myths about sexuality.."

"Really", he smiled, "what myths are those?"

"Well," she explained, "one popular myth is that African-American men are the most well endowed when, in fact, it's the Native American Indian who is most likely to possess that trait. Another is that French men are the best lovers, when actually it is the men of Greek descent. We have also found that the best lovers in all categories are the Welsh."

Suddenly the woman became uncomfortable and blushed. "I'm sorry," she said. "I really shouldn't be discussing this with you, I don't even know your name!"

"Tonto," the man said. "Tonto Papadopoulos, but my friends call me Taff."