Cocking his head and giving Marcus a small smile he couldn't help the twitch his erections have at the idea. "Are you sure?" He asked. It wasn't as though he didn't want him to, because Merlin, he did. But he didn't want the other man to feel required to return the gesture.
Getting up on the table he kissed the other man again, moving to his neck, his lips gentle. "Only if you want... but I'd like that..."