(a) A person commits the crime of sodomy in the first degree if:
(1) He engages in deviate sexual intercourse with another person by forcible compulsion; or
(2) He engages in deviate sexual intercourse with a person who is incapable of consent by reason of being physically helpless or mentally incapacitated; or
(3) He, being 16 years old or older, engages in deviate sexual intercourse with a person who is less than 12 years old.
(b) Sodomy in the first degree is a Class A felony.
