Please, there's always overthinking involved when Inigo is around. Even as he's finally managed to kick off his shoes - somehow that always seems to take more fiddling and more time when he's actually more focused on the act, like in this moment - and moves fully back onto the bed, there's definitely still something more flustered about him. It becomes even more obvious in the face of how casually half-sleepy Tidus still seems.

"S-Sure."

It's why that single word comes out with a stutter, even as he moves the blanket to actually come lie down in bed as well. A little bit more clothed than Tidus, but hey, that doesn't really matter if they don't need to lose clothes in the first place, right.

"You've got to stop playing with my heart like this though. It's bad for me! I'm going to get a heart attack!"

.. you know, said as if Inigo didn't totally participate in the joking sex banning only a few moments ago. Maybe he's too flustered to think about it in this moment, his heart pounding so high up that he can feel it in his throat.