The kiss both managed to quell the worst of the urges rising within him while also creating a stronger desire to be closer to the woman in his arms, intimate with her in all capacities, immediately. He did his best to stave off the desire for the moment, though, wanting to draw out the kiss a bit and make certain this was what she truly wanted.
Not that Spock thought she was likely to change her mind. He still had just enough control over his mental facilities to realize that Nyota had already made her decision and wasn't about to back down... but he wanted to at least give her the option.
His control was short-lived, however, and his urge to be with her was growing at a rapid pace. Churning within him, building to a dangerous crescendo until, by the time he'd broken the kiss and slid his lips to her neck to pepper kisses upon the flesh he found there, his had ceased to function on a higher level and was moving on pure instinct.
Straightening to his full height, Spock peered down at the woman in his arms with pupils that were dilated and an expression that was a mixture of undeniable want and intensity unlike any he'd ever shown before. His breathing was labored and there was a slight tremble in his limbs as he stooped just enough to slide his arm beneath the bend of her knees to sweep her, quite literally, off her feet and into his strong embrace.
His lips again found her neck as he supported her back with his other arm and cradled her against his chest. Moving with certain, unfaltering strides he made his way to their bedroom.