Kinktober Day 14: Cumming in public/public humiliation

Your usually shy girlfriend bought some new lingerie sets and originally wanted to show them to you and instead of being normal and waiting until you got home, she sent you many spicy pics while you were busy at work. As a consequence for distracting you, you're now making poor Yuri come along with you on a shopping spree day while having a prostate vibrator inside of her. She's not very good at keeping a straight face.