Is it normal that my boyfriends penis smells like fish and chips?

Yeah that's really normal. Genitalia can develop all sorts of strange and familiar smells, doesn't necessarily make it weird or unhealthy. :>

Why not drizzle some lemon on it and enjoy a tasty meal? Add some salt and vinegar and the tartare sauce is at the end.

maybe hes fuckin an english broad on the side

Try a shower first then?

Do you suck his cock very often?