By Jeremy Clarke
MOMBASA, Kenya (Reuters) - Bethan, 56, lives in southern England on the same street as best friend Allie, 64.
They are on their first holiday to Kenya, a country they say is "just full of big young boys who like us older girls."
Hard figures are difficult to come by, but local people on the coast estimate that as many as one in five single women visiting from rich countries are in search of sex.
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