Sorry I haven't posted in a while - work, kids, bunnies - you know how it is.
I took both buns in to be spayed and neutered earlier this month and they're doing great.
They lived next door to each other in their cages and had ajoining playpens since about 3 days after surgery. My first attempt at letting them meet ended quickly because Biscuit was only interested in humping and Gravy wanted none of that. After about a week, I took down the barrier between their playpens, sat inside, and let them meet again. Everything went really well.
I've let them spend all of their out-of-cage time together and to this day I haven't seen any aggression from either one of them. They chase each other, and binky together, so I guess I got pretty lucky on the bonding issue. They don't hug up to each other or groom each other yet, but they seem to be content in the same space. The only thing I have noticed that's a little odd, is that Gravy doesn't want Biscuit coming up and sniffing her. She's not afraid of him, because she'll take off when he comes up to her, but she'll make a circle and come right back around and sniff him. She'll crawl all over him, and sniff him, and that seems to be fine with him as long as it's not his hind feet.
I moved them into their new house w/ attached playpen today - and so far, so good.
I decided they should have plenty of space, so I built them a 3 story condo. Here's a picture:
They're both resting on the second level - Gravy is laying in the back right corner, and Biscuit is in the front left. (This is what my dining room looks like now, by the way.) Had to move the table to make room for the babies. Who needs a table to eat anyway... lol.