For those who are actually interested in making that all happen, you could try rent.men. I've used it a couple of times and the bi guys that can be had for about what you pay for a female provider are good looking and fit. Which certainly makes it easier to get the female engaged in such an endeavor.
I suggest contacting groups who hire our for bachelorette parties. You can hire guys who will do whatever you and your group want to see. It can get very wild. In my experience, women seem to enjoy watching men passionately kiss for a very long time while they fondle each other’s cocks before they fuck while the guys get more turned on watching men suck and fuck each other’s assholes for a long time. It depends who is in your group watching.
I love sucking another guys cock in front of groups of women. Women really appreciate watching another guy shoot a big load into my mouth and then have me blow bubbles before swallowing