Oh, it most likely was breaking that barrier, even if Scott wasn't aware of it. His senses were on overload at the moment; the feel of her, her scent, everything about her overwhelming him and taking him over to the point that any hesitations and 'what ifs' he might have had? They were the least of his concern.

A content sound escapes him as she kisses his throat and he ducks his head slightly as he starts to trail slow kisses of his own from her ear down to her shoulder, a light nip delivered to her collar bone when he gets there.

His hands smooth back to their respective sides because she's not going anywhere and he's not about to push her away, smoothing down her sides as if memorizing every curve of her; every inch of skin he can get in contact with. And then, still lost in his own wants--drugged on everything that was Stiles--his fingers slip underneath the top of her jeans to trace along the skin there, nipping at her collarbone again to give her encouragement to keep going herself.

Because why not? They had already gotten this far; might as well see how much further it could go right? Especially since he was realizing just how much he had wanted this for awhile.