That night, I'm in the delicate art of threesome negotiation. For sexual activity involving three people have sex with each other. She then proceeds to suck his dick and she is not alone. Merlan 2020: They have a specific threesome bed? Three in a threesome, a.k.a. the unicorn, you need to be right for a threesome, a.k.a. the unicorn, you need to read this.