Our grass is pretty amazing her, so I normally wouldn't be too worried about the mom losing too much condition nursing twins. We always have goat milk to fall back onto as well if things aren't going well for one or the other.
But yeah, the bull could not possibly have mounted her, but probably was just tall enough to slip one past the goalie on all 4's. I guess anyway.
Every bit about her, though, made me think she was a freemartin because of her very thick neck... very steer-like. But I really hoped she wasn't becuase I like her coloring and she's fairly tame. She was actually grafted onto Brown Swiss, which the farm I got them from often does with twin calves.
I couldn't be more pleased. She is also a heifer calf. That gives me 5 heifers counting the calves, which is for me ideal on 25 acres plus about 8 more we use for pasture and another 15 or so we cut for hay. A litlte bit of everything and not too much of any one thing. :0