[ Soubi is even more surprised than Ritsuka at the sheer ineffectiveness of his spell. And now this invisible box is closing in on them, to the point where Soubi has to pull Ritsuka even closer still for sheer lack of space, both arms curling about the boy's waist.
As if in answer, though, the bot brandishes its attached mistletoe, giving one more urgent reminder to 'KISS!' Soubi decides to take its advice and act quickly, before they're both crushed. Leaning down, he slides his lips against Ritsuka's, the motion familiar, at least, despite the strange situation.
The barriers don't retract--Soubi can still feel a wall firmly against his back--but they do, at least, stop moving inward. ]