I am a 19 year old female. One of my best friends told me one day that she and her bf were looking for a way to spice up their sex life. She said that her bf had suggested having a threesome and he wanted me to be the third person. She said that she would rather me do it than anyone else. I want to do it, but I don't want to fuck up our friendship. It sounds like it might be a lot of fun, but what if it makes things awkward between us afterwords? I love my friend and her boyfriend is a great guy, we are all very close. Should I say yes and bring us all that much closer to each other or will it end up ruining the friendship?