This needs to be a thing! 
Inquisitor: "Cullen, the troops are waiting for you to make your speech."
Cullen: "...Inquithitor, I'm going to neeth a few minuteth."
Inquisitor: o.O "Is there something wrong, Cullen? You sound a little... off. Can I get you anything?"
Cullen: "Uth. Welth." *rubs back of neck* "My tongue ith numb."
Inquisitor: "How odd. Are you okay? ...actually, come to think of it, your tongue was numb the other day too. Does this happen often? I wonder if you're coming down with something. Are you allergic to anything?"
Cullen: *clears throat* "Uth. Welth. I've notithed that thith happenth after we thpend the night together."
Inquisitor: "Pardon? I didn't catch that. It sounded like you said it happens after we sp-- ah." *a pause, and then barely stifled laughter* "Oh.". *giggling* "Well you have been doing it a lot... not that I don't enjoy it... I really do."
"I didn't realize that tongue numbness was actually a thing though. I thought it was a rumour. "
Cullen: *rubs the back of his neck again, his ears have become suspiciously red* "I think... I think I'm going to... go." *strides away quickly*
Inquisitor: "Are you going to come by my quarters again tonight? Hey! What about your speech?!"