LATEST: Comedian Bill Cosby admits he gave his sexual misconduct accuser a blueberry muffin and an allergy medication, but insists there was no inappropriate behaviour.

Canadian ANDREA CONSTAND accused Cosby of drugging and sexually assaulting her in January (05) - a year after the alleged incident in his Pennsylvania home.

In court papers filed in Pennsylvania and obtained by US news show CELEBRITY JUSTICE, Cosby admits inviting Constand to his home and giving her over-the-counter antihistamine Benadryl when she confessed she was having trouble sleeping.

In the papers, Cosby denies assaulting Constand, who spent the night in his home. He admits he woke her in the morning and treated her to a muffin and a cup of tea before she left.

Cosby faces allegations from another 12 women, who all claim the comic drugged and molested them.