Have had Willow and Mizu, both ragdoll girls since they were 8 weeks old in January (they are not siblings). Always wondered why Willow was so much smaller but thought it might be down to dodgy breeding/health issues she had when younger where she wasn't eating a lot for a long time. But turns out, there is a simple explanation. The vet pointed out Mizu has testicles today! I'm in shock! Especially as I'd asked a previous vet to check as I did feel that Mizu looked more like a boy? I even checked online about the space between the anus and the genitals and she looked like a girl, but perhaps the testicles weren't prominent enough at that point as it was about 3 months in? I don't know. Had them booked in for neutering anyway but trying to get it sped up. I'm in shock!