Someday, I want to try double-vaginal penetration. I really want to feel another man's cock sliding along side mine as we enjoy the same partner together. I fantasize about her cunt gently squeezing our two cocks together. I asked both my partners if they would do this with me. They both said I'm too thick. Neither wants more than one cock at a time inside their pussies and the thought of my thick cock with another does not appeal to them. However, neither has ever tried DV so it's not like they are turning down the offer from experience. Our triad has several sex-positive female and male friends, so I could ask them if they would let me try this with friends. Before I attempt this, I'd like to know if anybody else did it. What was it like? Would you do it again? Did you enjoy it? Did you do anything to prepare for it? (i.e. - stretch the vagina with thick dildos and use lots of lube?) What other accumulated wisdom can you share?