What kind of strap on do you prefer to use? Do you like the ones that penetrate you as well as your partner? Do you prefer vibrating or not? I'm looking into buying another one for anal play and I would love to see or hear what some of you use on your men. We already have one with two cocks one for each of us but it doesn't vibrate. I'm thinking the vibration would make a lot of difference for both of us.