I went on a hot spring trip with my best friend on a double date, but I actually ended up having sex with my best friend. My best friend, he's not really my type, but... his body compatibility was great. To be honest, I was jealous of my best friend who was frustrated and loved all the time. Even though I thought it was no good, I was so excited to hide from my best friend and boyfriend and do naughty things and I couldn't stop. Hey, is this a secret?