I apologize for the misunderstanding. The statute reads, (f) if the actor has a significant relationship to the complainant and the complainant was at least 16 but under 18 years of age at the time of the sexual contact.
see below for the interpretation of 'significant relationship'
Subd. 15. Significant relationship. "Significant relationship" means a situation in which the actor is:
(1) the complainant's parent, stepparent, or guardian;
(2) any of the following persons related to the complainant by blood, marriage, or adoption: brother, sister, stepbrother, stepsister, first cousin, aunt, uncle, nephew, niece, grandparent, great-grandparent, great-uncle, great-aunt; or
(3) an adult who jointly resides intermittently or regularly in the same dwelling as the complainant and who is not the complainant's spouse.