In any prosecution for an offense involving or threatening physical injury, it is a defense that the victim consented to the infliction of physical injury of the kind done or threatened, provided that:

(1) The physical injury done or threatened by the conduct consented to is not serious physical injury; or

(2) The physical injury done or threatened is a reasonably foreseeable hazard of joint participation in any concerted activity, athletic contest or sport not prohibited by law.

11 Del. C. 1953, § ?452; 58 Del. Laws, c. 497, § ?1;