I know that ふ is pronounced with a bilabial fricative, which is different from an English "f" or "h". However, in 外来語 there are some words containing things like フィ、ファ、フェ and フォ. e.g. フィクション. Seeing there is a ふ in there, I am wondering whether I should do a bilabial fricative or the English "f". Can Japanese people pronounce English "f"s?
Both sounds are allophone and recognized as the same sound but English "f" sounds a foreign accent. Even if the speaker is familiar to English sound, s/he won't pronounce it with English "f" because 外来語 is Japanese.