[That gets a snort out of the old scientist, and he nudges Sans with his elbow.]

Y'know, for a skeleton you... y-you're pretty humerus. R-really hit me in the funny bone, that joke did. [someone stop these two]

I-I bet you know a skele-ton of those kinds of jokes, huh? Heheh, yeah. [His smile widens a little more, and he looks at Sans curiously.]

But the real question is: i-if you and another skeleton get it on, would 'ya call it boning?