Does my sister-in-law have to stay topless next to me?

Does my sister-in-law have to stand next to me topless? This guy doesn't understand anything, but then we don't either, she's Karma Rx and when she's home alone with her brother-in-law she doesn't care about standing topless, when she sees that he can't stop looking at her, well they've got it set up for a good fuck between brothers-in-law.