Stiles nodded his head, because it made sense. If he was destined to be with Derek, then he had been since he'd been born, so his interest in wolves - the interest that had grown into new thoughts as he'd matured - was expected. Of course he would be sexually attracted to wolves, he was supposed to be the mate of one. And it made him feel less guilty about his early sexual awakenings when he'd watch wolf on human porn, when he'd look at photos of knots, when he'd touch himself thinking about that-
He made his own growling noise at Derek's supposed knowledge of virgins and how they felt after. Of course he was being stupid, Derek probably didn't have a preference of virgins over everyone else.
"But tomorrow I want you inside me again," Stiles whispered, finding himself clinging to his mate as though there were some possibility of him being stolen away by virgins or some nonsense. "I need to get used to the feeling, I want to get used to the feeling. And we both enjoyed it-" he smiled. "Should make sure I'm used to your knot before my rut, so I don't come out of that too sore."
Stiles' smile grew into a bigger grin. "I have no problem with you getting all protective and growly about me. I think you'll do that anyway," he added, because he was sure Derek would be wary of anyone that came too close to Stiles whilst he was pregnant, and then anywhere near their pup when they were born. "But I like the thought of you- I like you being possessive. I want you to touch me and press me down and claim me over and over-" he whispered, even as Derek rested gently against him, the two of them comfortably close.
His eyes widened at Derek's reaction. Of all the things he'd expected, that wave of lust was pretty far down the list. Stiles hummed happily as his mate pressed even closer and kissed him, his thighs parted to allow him to rest comfortably there. Well damn, he should have told Derek that earlier.
"Yeah," Stiles breathed. "If you wanted to, I'd let you. Willingly. If you needed to. I'd love it. I'd be a good boy for you, I'd be on my hands and knees, wet and open for you to mount me-" his cock twitched too, a tingling between his legs where he was just getting wet. "I love you in every way. I want you in every way."