Kate had been propping herself up against a wall while she took her shoes off, because it wasn't as if she was going to wobble on one foot with no support whatsoever; she wouldn't have wanted to fall down in that dress of hers.

Anyway, they hadn't wandered far from said wall, which meant that Kate was now going to attempt to back towards it, pulling him with her without interrupting the kissing. So she could lean her back against it. Take some of her weight off her poor feet. Or something like that.

No, all worries of the date being ruined had been premature and unnecessary. Entirely.