We went to a LS friends house one night. They had teenage children that lived with them every other week. So play time was reserved for weeks their kids were not there. One night we were over there watching movies and ended up in the hot tub. Their kids were rarely were ever out of their rooms, it was night time, and dark out on the patio aside from some ambient lighting. There was a lot of sexual tension in the air that night. Wasn't long before the girls tops were off and some light touching was going on. However, we knew better than to press any further and we started to wrap up the evening. We all got changed in their master bedroom/bathroom which was on the complete opposite side of their house from where the teenagers were. We all were successful in getting our clothes back on but as we were hugging and saying goodbyes, no one wanted to let go. Kissing and touching ensued and bras were being undone. The other wife was definitely the most anxious given the kids were there and I could tell that was going to be a problem. The husband was all over my wife and it was turning me on but I knew we would need to shut it down. I didn't want to create problems and wanted to honor our agreement. So cooler heads prevailed and we left. We fucked our brains out when we got home. The whole "taboo" part of not being allowed to play made it even more fun. I am glad that we made the right choice but it was a fun night. The sexual tension was so thick you could cut it with a knife. We were more careful next time we went over and their kids were there. Just avoided any situations like hot tubs or changing in the same room to prevent the temptation to push the boundary again. Just part of the lifestyle when you become friends with folks. Was a fun night but also a learning opportunity on how to navigate this situations.