I'm just too tight to have two of anything in one single hole, but a anal and vaginal DP is amazing! My significant other is bi so he doesn't care about rubbing up against another guy, and 90% of men who get that opportunity won't turn it down. And as someone said above trying to recreate it using a dildo just isn't the same, still enjoyable just not equal. 

I think with a profile Pic such as mine I can add to this thread.

I was with two guys in long term relationships before my current bf and neither of them mentioned anything about my feet or anything about feet at all, and to me that was normal. 

Fast-forward to my current bf and even before we actually hooked up he mentioned that he liked my feet multiple times. This I thought was very strange, I didn't like anyone touching my feet at all. On our first sexual encounter my feet were over his shoulders like normal and all of a sudden he pulls my legs down so that my feet are on his chest! I freak out inside my head!!! What is he about to do!! 

Nothing... He just left them there, no touching, licking, kissing,absolutely nothing! 

Knowing my feelings towards my feet he took it really slow and eased me into it, and now I love it! After a long hard day at work I get the best foot massages, and he knows it will probably lead to a nice footjob for him. 

I now love my feet being played with and use them alot during sex and forplay. 

He loves it, I love it. Win win!