I went along with what she suggested

and I stood up to let her suck my nipples. I was so turned on as was my boyfriend. She caressed me at first, then slid the top of my dress down. My nipples were very hard and anticipating the warmth of her mouth. All eyes were on us as she lowered her mouth to my breasts. It felt so good as she sucked it soflty then begin to nibble just a little. I pulled my top back up and told her to come with us, we went to the backroom and locked the door behind us. She asked my boyfriend if he wanted to watch first or be part of the action.