I unexpectedly joined my mom and her two mom friends on a hot spring trip. And we all ended up in a mixed-bathing hot spring. The two mom friends have very large breasts, which excited me and caused an erection. They found me cute and played with me, using their breasts to hide my condition from my mom (I hope she didn't notice...). They turned me into a comfortable toy and had fun with me. It turned out to be a very enjoyable trip.
