1. A person is guilty of aggravated sexual abuse in the first degree when he or she inserts a foreign object in the vagina, urethra, penis, rectum or anus of another person causing physical injury to such person:

(a) By forcible compulsion; or
(b) When the other person is incapable of consent by reason of being physically helpless; or
(c) When the other person is less than eleven years old.
2. Conduct performed for a valid medical purpose does not violate the provisions of this section.

Aggravated sexual abuse in the first degree is a class B felony.