Dominate her

"Like what I did to your friend? Now, it's your turn..." Melissa tries to escape but you grab her and push her down on her knees face against the cold floor. "Pleease don't do this! I don't want to become a dog!" "But you already are a bitch in heat and I am going to treat you like one." You don't waste any time as you shred her remaining clothes to reveal her wet cunt. Despite her protests she can't resist the pheromones and raw sexual energy in the air.

Melissa tries to get up but you grab her hair with one hand and push her down, lifting her waist with the other and forcing her to present herself for you. You place your cock to her pussy, rubbing it against it and ignore her protests of "NO! Wait!" "If you give in this will be much easier for you..." You slowly enter her pussy with your demonic cock she whimpers unable to keep quiet. As you penetrate her deeper than any man has before Melissa gasps loudly and a low moan escapes her mouth. You start moving faster and your victim tries to bite her lip to keep quiet but soon you have her moaning and panting each time your cock goes balls deep inside her.

Nearby Kyle is circling you two, clearly anxious to join in but not daring to do so without your permission. Deciding to throw the dog a bone you pull out from Melissa's dripping cunt. "Oooh... Are- Are you stopping?" she manages to say as she looks up, her hair is a mess by now, sticking to her sweaty skin and she wipes it off of her face, despite still clinging into some shred of resistance you can see the lust and dissappointment on her face. "No my slut, you wanted Kyle and I think it's unfair to **** him to just watch us rut..."

You pull Mellissa up onto your lap and lie down on the floor, she doesn't even resist anymore and she starts to grind against your cock before catching herself and stopping. "You want more of my cock don't you? You want me to fill your cunt and ass with my incubus cum until you are full don't you?" Melissa tries to say something but manages only to shake her head, clearly conflicted by her fear of the demons and the magical lust that is clouding her mind. "Well, let's up the ante... Come here boy, let's double team on this bitch." The Hellhound Kyle climbs up on her back and licks her back as it tries to position his cock to her pussy, but your tail interferes "Not yet... Well Melissa, one last chance to say no. Will you run away and keep your precious soul and humanity for a minute longer, or will you submit to us, to me, and damn yourself? Say no and I'll let you go..." You guide your cock to her cunt and once again tease her by rubbing the tip against her, this time also guiding the Hellhound's cock to her asshole "...or push down and get one last fuck with your old crush as a mortal and damn yourself?"