Matt just satisfied himself with following Grace's lead and giving into her control. Like he had done a million times before, when it almost always ended up like this, with him going after her again after they thought they had enough of each other.
Karl, on the other hand, had no idea what he was doing.
All he knew was the by the sound of it, Alyssa's cover wasn't blown and apparently she fit very nicely into his arms, as did her mouth when he tilted his head a certain way. His hands weren't stationary, and if Ramerez hadn't been focused more on high slits on Grace's costume, he probably would've noticed that Karl's hands weren't doing a lot of rough handling like his mouth was.
"Hey! I dunno what you lovebirds got goin' on ovah there but you got ten more minutes t'get your ass inside the place, Kim! Don't make me come out an' find you, y'hear?"
The loud slam of the door indicated that Ramerez had gone back inside and it also made Karl come to a slamming halt even if somewhere in the back of his mind, he had been fixing to darken the mark under her jaw.
"Grace--I mean, Alyss--"
Karl turned away from Alyssa to look at the door Thug 3 had left behind, to make up for words.