"I'm above average height. Fred's a bit tall for a woman, but not by a very large amount. You're considered short by our standards, but not so much that you'd get funny looks for it."
"There exist fairies taller than you, just not my kind. My kind doesn't even have males."
Nuzzle. "Poor thing. You're much taller than I am and that will have to do."
Cute little kisses with her still on his lap. The best kind. Well, of his small sample size, anyway. Let's add to that sample size! For science!
Does he have a particular experimental hypothesis he'd like to test in comparison with the control group, here?
Nope, he's actually just going to work on the control group, their earlier kisses weren't very normal. What with his catatonia or her climbing him, and all.
He likes being a kissable mortal! It's nice. She is also a kissable fairy, look at how they match, it's wonderful.
Oh, how convenient! This is a good plan, this is how not-Ted gets a good control group going.
Eventually:
"I don't really know how mortals - work. I mean, kissing appears to be the same, but you have clothes on the rest of you and I don't really know where we're going to go from here or what to expect."
"Uhhh." Blink, blink. "In a - um. 'You would like to find out what's under the clothes on me right now' or in a - 'What are we going to do with our relationship' kind of way?"
"I'm open to several possibilities. It just seemed like I should mention it before it became immediately relevant."
"I think we should - probably wait a bit before we start removing clothes," coughs not-Ted. "But um. Yeah, we should - talk about that problem before it becomes immediately relevant."
"For all I know you're as fairylike under your clothes as you are in the places I can see, but I don't, actually, know. And vice-versa, I assume."
"Vice-versa. Um." Another cough. "Did you know I'm not likely to care about what's under your clothes except if you have, like - a horrific all seeing eye under there that just - stares or something."