M4F - Looking for an F to humiliate my online slut with

I have an obedient online slut who won't cum until I let her. It's been a few days since I let her and now she's quite needy. That's why I want to further tease her by playing with another girl in front of her in a group chat while she reads them helplessly with a leaking pussy. Looking for someone who can understand D/s dynamics deeper than simply thinking it's just wanting to control and wanting to be controlled. And someone who can understand how FFM dynamics work. Would like to talk and vibe check before I can make a group with the three of us.

Not looking for anything long term per se.

Please be 21 and above, have decent english.