Convincing my step-sister to jerk me off

My dumb stepsister came into my room on my day off and wouldn't leave, So I decided to make her uncomfortable until she took the hint and went elsewhere...until it didn't work, and she continuously let me keep going. What started as a plan to creep her out quickly transformed into a plot to empty my balls onto her perfect little tits, and I think I achieved both objectives pretty well. (Part of a recent collaboration between me and Lilah Rose to create content for her upcoming c4s store.