[Her eyelids closed partially at the tug to her lower lip while humming at the hand cupping her backside. A hand slides down to stroke at Dave's length, making sure to gather what she could from the tip to help with her strokes.]

Good to know. [Grell already knows that she'll unravel and lose her composure with more teasing (which is how she likes it, really) yet this time, she's willing to speed things up a bit. She kisses him, hungrily so, to show that she's enthusiastic as well. Her hand is moving all the while, giving rhythmic motions, occasionally allowing her fingers to tease his testicles.]