Excuse the bitchy reply, doll. You're right, having something in both holes does make each hole tighter. It's good, though. It's amazing, actually. You'll really like it. Just, as you know, definitely use lube. The inebriation will help too. You're going to be hooked. I look forward to reading more about it.
Your post has reminded me that I need to purchase an anal plug, like, yesterday.