Potter stiffed at the contact of cold alcohol, but he stayed still, Draco caught the excessed alcohol with his handkerchief just in time, wiping them off right under the curve of Potter’s arse before they had the chance to taint Potter’s clothes. He then threw the handkerchief on the table, and reached for the bottle of cotton balls. He did it patiently, picking the cotton balls out with tweezers, dipping them in just the right amount of alcohol and making sure every inch of skin was sanitised, rubbing the bare skin with the rough fibres of the cotton.