Ah, Caesar can never resist the butt. It says something about how often butt touching occurs that Tadashi rarely jumps when it happens anymore. Is he alone in a room with Caesar? Is there nothing crazy or upsetting happening? Yes? Then the butt's probably getting touched.

Tadashi chuckles and bumps their shoulders together.

"Sorry, no such thing as a helmet that doesn't ruin hair, but sometimes sacrifices have to be made in the name of science." He reaches up to ruffle up his own hair further, leaving him with a look that would be very Hiro if only he grew those locks out a few more inches.

"Give in to the dark side. We have cookies and safety equipment."