Fina's face begins to redden, her eyes watering. Reflexively she tries to pull away but you hand on the back of your head prevents that. She looks up at you, almost pleading, small gags beginning to wrack her throat, her saliva thickening. There it is, you think to yourself sighing in pleasure. Just milk milk me, just like that. With every movement of her throat you feel yourself getting closer when she starts patting on your upper thighs. You look down and see her face is blue and her eyes are rolling back in her head. The sight of her distress plus her gagging sends you over the edge and you pump her throat full. When you've spent yourself you take your hand off her head and she pulls away hacking, gagging, wretching, and gasping. You let her collect herself for a moment. Soon, she turns to you and gives you a half-smile. "That was...okay... but you really should have kept going until I passed out!" Your eyes widen. "I... what? But I came." You say, sheepishly trailing off. "Yes, I know, and it was an impressive load! Very tastey too. Your stamina needs work though." You shake your head, not really believing what you're hearing. "Ok, so now hit me." Your eyes dart to her. "What?!" "Hmm, backhand me across the face, maybe? Yeah, and call me some names too, ok." She's rubbing off while saying this, her hand deep in her crotch, panties wet. You had no clue what you were getting yourself into, and this is awakening something. Something primal. You smile and rear your hand back, getting hard again. She does that beautiful smile and cheerily reminds you "Don't forget the names!" Before you bring down the brunt of your frustration on her. This promises to be a beautiful night.