Last night, actually. We were cuddling on the couch after dinner, watching a movie, her naked legs stretched over mine. Every couple minutes her phone would buzz and I recognized the look on her face, the wry smile of a girl having fun. When I asked who she was texting, she laughed and admitted that she was flirting with her friend's husband. She showed me the messages (they were talking about sending each other nudes) and my cock started to stiffen against her taut calves. These are two friends that we have discussed swinging with before, so I grabbed my phone and started sexting with her friend at the same time. Now we're making plans for a foursome in a few weeks 😊