As she's lifted up onto his cock, Viridian squeaks quietly in surprise, though as she just holds him tighter and wraps her legs around his waist, clenching down lightly around him, she's clearly not distressed at all by this turn of events. After all, she was horny already. Why would she care if she's moved around a bit?
She's more curious about how he feels about being pentrated, really. He clearly didn't mind enough to stop her or he'd have said so (or perhaps just yanked her tail out), and she's heard enough stories to know he's probably been on the receiving end before, but that hiss is hardly enough for her to go on as far as if he actually likes it, and starting to fuck her could go either way.
Still. Being shy about asking won't help, and as such, she leans up to nip his earlobe, whispering to him, though her tail continues to slide deeper in as she speaks. "Want me to do this next time we have some fun with one of the girls? Or should I try something else?"