Yussa moans sharply, loudly, the first time Caleb's tongue manages to rub against his clit. After that the attention is consistent enough that he loses himself in moving between the undulating length that penetrates him and the flat keeping slick pressure against his clit. He tries to ride the dragon's tongue as it curls inside him, muscles tensing around it, bearing down like he can milk it.

"Caleb--hah--"

He's almost embarrassed by the keening sound he makes when Caleb figures out how to control even this most subtle use of his breath. Shocks spangle over the tender flesh between his legs, sparking over the hard nub of his clit as Caleb learns to direct it. Unthinking, he grabs at some part of Caleb's muzzle, a scale or small protruding horn or--anything. Anything to hold on as his urgency rises with the calculating use of electricity to drive him mad.

Even with all this, Yussa's orgasm takes him by surprise with its intensity. His thighs and core tremble as he tries to close his legs like he can trap the delicious sensation of his lover's thick tongue. He's lost track of time, he doesn't know how much longer Caleb has this shape but gods, he knows what he wants.