Singapore
The age of consent in Singapore is 16 for all opposite-sex activity and only female same-sex sexual activity: Section 140: (1) Any person who – (...) (i) has carnal connection with any girl below the age of 16 years except by way of marriage (...) – shall be guilty of an offence.
Under section 377A (outrages on decency) in the Penal Code states that; Any male person who, in public or private, commits, or abets the commission of, or procures or attempts to procure the commission by any male person of, any act of gross indecency with another male person, shall be punished with imprisonment for a term which may extend to 2 years. This means that all male same-sex sexual activity (including mutual masturbation, oral and/or anal sex) is still illegal and the punishment is up to two (2) years jail, based on the Offences Against The Person Act 1861.
Read more about this topic: Ages Of Consent In Asia