Phoenix Maplewood a lesson in love

Grace watched Shreya intently, unawares of the issues going on with Esaro. It was all slightly disturbing to her, the act of sex, but she also found herself unable to STOP thinking of such things. She worried about if it would hurt, sex or afterwards, and she was sure puppies didn't look comfortable to carry let alone grow. This entire lesson, in fact, was made up of things Grace wasn't so sure she'd like. But then another thought popped into her head, more so focusing on the wolves doing the act than the act itself. 
            "Does it matter what male- or female- its done with?"
Was it wrong for her to mate with certain wolves? She understood that Saena would have to approve if she ever DID mate, but with who? Did she get to chose, or would her alpha choose for her? Did the size of the two matter?