He didn't need to breathe, technically, but Oliver inhaled Cal anyway, head perfectly swimming already as the kiss between them deepened. He hadn't drunk nearly enough wine to be dizzy from it, so that was all Cal, and the heat of his mouth beckoning Oliver in even further until he became completely lost to it. He could taste the sharp flavors of wine along the edges of Cal's mouth and it made the angel sigh against his.
"Mm. Very tempting," Oliver breathed only centimeters away from Cal's lips now. Cal was, of course, the very definition of tempting and for Oliver especially, he was largely unable to resist those temptations, especially when they were displayed right in front of him. He wasn't that hungry yet, not for food, anyway. His hunger for Cal had taken precedent.
So much for angels being sexless creatures. Then again, there had likely never been an angel quite as human as Oliver.
With the prospect of an almost fully naked Cal, though, the sight of him alone soon wasn't enough to sustain him. Oliver was an impatient angel, and Cal had the sort of body that made him instantly weak in the knees. Strong, practically built for tempting, and like Crowley there was also a certain snake-like quality to it. Really it was all in the hip, and the way Cal was able to seduce simply by presenting himself with a few words. Like Eve with the apple, Oliver was powerless in the face of all that he could possess. He couldn't go through life without that knowledge.
Using the sort of grace that Oliver only seemed to find at times like these, the angel delicately detached himself enough from Cal to swing one leg over the sofa, and then the other, sliding his much more narrow body down until he could safely (and carefully) re-position himself directly over Cal's lap, one thigh trapping either side of him and his hand still pressed firmly to his demon's chest. He could have already miracled his own clothes away just as Cal had, but Oliver couldn't deny that there was something delightfully wicked about straddling the lap of an almost entirely naked demon with a fully clothed angel.
Also, he had a feeling he knew exactly what it would do to Cal.
Oliver leaned in to kiss him again, this time more thoroughly now that he was no longer craning awkwardly over the back of the couch, crushing his mouth to Cal's before opening his to invite Cal in with a soft noise of relief. The hand on Cal's chest moved, exploratory fingers dragging along skin that was already hot to the touch, thumb brushing over a nipple on his way to exploring every inch of available flesh and rib.
In the (very) back of his mind, Oliver was still mildly aware of the conversation he'd only narrowly dodged from earlier, before wine and mutually beneficial mischief distracted them both from it. He knew one day he'd have to stop avoiding the conversation Cal kept trying to have with him about the state of their living situation, but tonight he was already thoroughly preoccupied with Cal (literally) in hand.
Leaning slowly back, Oliver tried to keep the kiss even once he pulled away, and pulling Cal's bottom lip with him. Long, precise fingers found their way down the length of Cal's torso and hooked onto the waistband of his boxer shorts. Inside his own trousers, things were already growing uncomfortably tight. Cheeks now appropriately flushed, there was still the bare hint of that angelic scheming from before. "Does this mean we can keep the bookshelf?"