At size 12 I probably would only consider your sister as a small BBW depending on how she carries it. This lady’s deal was she says she 5’8 so that means she’s HWP, well if you that y’all and 200 lbs with big tits and some meat in ur ass then probably yes, if you 300lbs and you mid sections is hanging down below the belt line a good bit then no, to me it means that maybe you are a little heavy, but it’s kinda spread out over your body some what evenly, if your 5-5 and 170-180
But you have DD tits and a some meat in ur ass I probably wouldn’t even consider that a BBW. It’s all in how it’s distributed I guess to me. And I’m not trying to shame anyone some guys like that, I’m just not one of them. Big tits big ass fine, a gut that literally is swinging and I have to literally pick it up and hold it out of the way so I can enjoy DATY, just not for me sry. Like I said won’t happen again.