Dave lets out a soft grunt to indicate that he is absolutely not interested in how their horns define their blood colours or howeverthefuck this is supposed to work. Instead, he reaches out to rub the horns with his fingers before using them to jerk Sollux's head back.

His noises sound more and more approving as the bulges work around him, drawing a surprised gasp of pleasure out of him as they squeeze around him. He's already thinking about the possibilities with toys. Funny little nerdy outfits to go with the lisp. This is fun already.

With the same small regard he's had so far, Dave starts to rock his hips against Sollux so he can fuck him faster. Rough enough that the flesh of their thighs smack together. The hand on his horns gives him another jerk backward while the hand on his backside clenches and grabs at what little flesh is available.

"The lisp is real cute- tell me it feels sooo good. Go on."