Just rescued 2 rabbits, but have no idea what breed they are, or even are related to.  I'm not even sure if they are dwarfs or just babies.  Their eyes are gorgeous!  Maybe they're large hamsters with long ears???  One is about 3 pounds, the other 2 1/2.  I was told that one was female, the other male, but I'm not so sure.  Their parts look male to me (though I'm sure no expert!).  Here are some pics of them (the keys are there for scale):  

  

They're quite likely mixed breeds, although to me it looks like the second one is part rex... maybe. Its hard to tell. And keep them separated if they aren't fixed, just in case! I'd take them to a vet for a check-up, and to get them sexed. And you're right... gorgeous eyes! I could just snuggle them all day

Wow, those are nice rabbits! Very cute and they seem well socialized.

They are beautiful! I love the wild bun colors! First one could be anything but does not look like she is related to the second. The sex looks female.

The second one is definitely a rex rabbit, the size would indicate a mini rex, young, but not a baby. Neither look like little babies. The second looks like a male.

I hope you have them separated right now. Were they together at all? You will want to get them into the vet to be sexed (I'm no expert!) and if they've been together at all, based on vet recommendations, I would consider an emergency spay of the female, just in case she is pregnant.

I'm not sure about the first - how old are they? If they're still young, he could really be anything. When he's older it'll be easier to guess based on his weight.

And the second is definitely a mini rex.

Very cute bunnies!

Thanks everybody! I appreciate the help. I'll certainly separate the bunnies immediately, though I haven't seen any humping activity at all. I already have 5 Angora rabbits and the 2 boys immediately start humping the girls--or even each other--given the slightest opportunity. The mottled bun definitely has shorter and softer hair than the other one, so I'm leaning towards Rex also.
@Beka27--how can you tell male vs female? What are the indications?
Thanks again!
Jay

Are all of your rabbits fixed, I hope? We'd love to see pics of your angoras also! They've always been a favorite on Binkybunny... (but I don't think we have any active members with any angoras anymore...)

Don't take my word on the sexes, that is just my best guess based on the pics. You'll have to have them professionally sexed by a vet. Separate them now just in case I am correct and they are opposite sexes. And unfortunately... just b/c you have not seen humping, does not mean it hasn't already happened when you've been away. It only takes a moment for a rabbit to get pregnant. Also, same sex rabbits will often hump for dominance, and females can hump males, so humping in and of itself is not an indication of sex.

What I am basing the sex on is that both sexes can protrude, but females have a slit. Males have a small circular "cheerio".