MINNEAPOLIS (AP) - A Plymouth man has admitted to sexually assaulting his daughter's friend after giving her a snack containing ground-up sleeping pills.

Fifty-three-year-old Michael Bruce Cameron pleaded guilty Thursday to one count of fourth-degree criminal sexual conduct. He's expected to serve four months in the Hennepin County workhouse followed by 10 years of probation as part of a plea agreement. He will face a two-year prison term if he violates the terms of his probation.

Court documents show Cameron gave graham crackers with frosting on top to his daughter and the 20-year-old friend who she had invited to sleep over Feb. 13. Cameron admitted to drugging the frosting and then sexually assaulting the woman when she was incapacitated.

He's scheduled to be sentenced Jan. 8.