It probably helps that Sam is incredibly careful of the fact that he outweighs Gabriel by a fair amount. He always lays down over his mate while paying mind to weight distribution so as not to crush him.

He bends, pressing his lips to Gabriel's as he settles over him slowly. "When you can shift again," he murmurs, "I want to take you on a proper mating run. Our wolves haven't really had a chance to meet each other."

And, he has to admit, he wants to consummate their relationship in their other forms as well. Which isn't uncommon among wolf shifters, he's found.