I was caught between two big-breasted mom friends on a hot spring trip with only women and was lesbian

My mother and two busty mom friends who live nearby go on a hot spring trip, so I decided to follow him... I was so nervous about a mom friend I met for the first time in a while that I couldn't fit in. They talked to me a lot and thought they were kind people, but then they started to hang out and I came across them and doing naughty things with mom friends... Even though I'm still in my mother's position, she teaches me a lot of things about sex, and when I get home, I can't forget the stimulation...