I have a great relationship with my brother's wife, we talk often. The other day, she complained that she wasn't satisfied with sex with my brother lately. She texted me asking if we could meet up the day my brother was out of town on a business trip. I figured it would be a good opportunity to let loose, so I invited my friends over for a sex party with my sister-in-law at a hotel. I felt a little guilty, but hey, it's for my brother's wife, right? (laughs) I spent the day giving her multiple orgasms, aiming for her highest ever number of climaxes, all raw and without protection.