My husband's younger brother came over for the first time in a long while because he had some business nearby. I've known Shin-san, my husband's younger brother, since he was a junior at our school. Whenever I see him, for some reason, I feel like playing a prank. While we were chatting as a trio, I enjoyed the thrill by touching Shin-san's crotch with my foot without my husband noticing. Thinking it would be bad if he found out, I chased after Shin-san as he tried to escape to the bathroom, and I ended up sucking his penis. That day, Shin managed to avoid being discovered and felt relieved...
