Sounds good. We had a cow claim both, two heifer calves two years ago. She raised them both, and come fall you would not know those two from their herd-mates as far as size, actually, they were bigger then some of the single calves. It didnt faze that mother cow either, she didnt lose weight and bred right back. That cow was amazing, but she had her hands (er hooves) full keeping track of them two for a couple months, but she did. Most of the time when we have had twins the mother only wants one, and will bunt or step on the other calf.
Jenna