Unless they fell on the floor and he caught himself from falling on to her or he tackled her to save her from another akuma. We could just be looking at the picture the wrong way lol. Plus Adrien is actually more like Chat in personality so it is still possible that he would actually corner her, especially if he found out that she is ladybug.
This is insanely amazing! I know the title has "Cocktail Bar," but this is definitely where I would finalize each day and mentally regroup for each tomorrow.....this would so be my office or an attachment to bedroom ;)