Sophie is just finishing off some work when you disturb her, you need to clean the floors but that isn't the only reason you've come into Sophie's classroom after hours, you know that she always stays late to work and she always wears very low cut dresses. You pretend to clean the floors while staring at her perfect big tits that are bursting out of her dress, will you be able to have a wank without her noticing what you are doing?