When you have rough sessions with Vanessa you are left with horny scars and everything must have a balance. Not all footjobs need to be aggressive and not all be passive. This applies to toenails colors. Some colors inspire you to be gentle others to be violent. To me for example dark colors tend me to be submissive to the girl and light colors make be very rush and agitated. Vanessa knowing me how I behave when she is with certain colors, she done something different, something to test how I will behave. Never in my life I had a footjob with purple color. Is up to you to find you if I will be submissive to her feet or I would fuck her feet rough.