Jill 30 (Bisexual)
Mark 36 (Straight)
Emma (Bisexual)
Mark and I went out with friends one Saturday night, when we returned home a couple hours earlier we discovered Emma having sex with a woman and 3 men. They were so into it none of them even noticed that we were there. We snuck into the next room and watched unnoticed. We never told Emma what we saw. And we have no clue who those people were , where she met them , or how anything started.