[Maybe that rough after-sex morning is to blame for this, along with everything else he's already noted at the back of his head. Things to think about later, when the blood has returned to his brain. They do say that make-up sex is the best there is, and that stressful morning could definitely qualify as a fight. Tension, emotions running high, the looming restraints that come with underwater prisons... and then the freedom and familiar comfort of being in his own apartment, his own bed.
It's not completely strange and if she's not complaining, he won't either. Sometimes you have to do something stupid.
He soon breaks the kiss in favor of trailing his lips down her jawbone, further down along her throat. For a moment he lingers on her pulse, just to feel it beat right there under the skin.]