I was playing truth or dare with my friends and my best friend, who knows that l'm a bit of a prude, dared me to take my breasts out. At first I said no but almost everyone cheered me on so l ended up doing it. It was the first time that someone besides my doctor and my best friend saw my breasts. It was embarrassing but I liked the attention and it turned me on a bit. I then dared someone else. Everyone else then kept daring each other to touch my breasts, as long as they didn't do it yet. If they did then they got a different perverted dare like for them to take their pants off. My next few turns I just did truth and kept getting asked perverted questions that I tried to answer with a lie though my best friend kept calling me out on it. Eventually I did dare again and had to get naked which I said no to but ended up doing after everyone cheering me on. By that point I was already really turned on. My best friend helped me spread my legs to give everyone a better look. My friends gave each other dares and eventually my best friend dared me to masturbate infront of everyone. I said no but they cheered me on and my best friend said she'd do it too so l ended up doing it. At some point, they stopped cheering and just started watching. I got too embarrassed and stopped, but they quickly started cheering again and I ended up masturbating again and I came infront of everybody.