"Dai suki desuyo, Onii-san."
You may also replace Onii-san with O/Nii-Chan, O/Nii-Sama, or Aniki depending on how you're talking. O/Nii-chan is used when you're casually talking or when you're trying to be cute. O/Nii-Sama is used when you're trying to be very respectful, Aniki and O/Nii-san are just used in generic situations.
Suki - Love
Desuyo - You
O/Nii-san - Older/Big Brother
弟 Otōto
弟 Otōto
"otouto"if it's your younger brother, "otoutosan" if it's somebody else's younger brother.
White when translated from English to Japanese is shiro for shiro means white
These phrases have no direct translations, and I'm having difficulty thinking of any Japanese phrase that conveys the same meaning.
Dog in Japanese is 'inu'.
Chocolate is 'chokoreeto' in Japanese.
Owari
Domo.
Koibito.
Sakarerumono
Yonbanme