She became a succubus

Yep, since she was now going to be a succubus then her new “employer” must have tested, sounds logical. Now she was naked anyway and didn't have much to say.

“I thought we were friends.” - she said to maintain at least some courtesy

"So treat it like friendly sex, you know sex with benefits," Mephisto said smiling, and his suit disappeared. Felicia admitted that he had a pretty big and even nice penis. For the rest, whack it sex with a demon has not yet been done.

Mephisto approached the girl leaning against the table by pressing his body against her and grabbing her hair firmly, and his hand had already entered between her legs and firmly thrust three fingers into her pussy

"I've always wanted to fuck you, but there was never an opportunity. And now you're coming to me all by yourself." - he whispered in her ear. He gave her a few more strokes with his fingers and knelt behind her. He grabbed her buttocks firmly, and his tongue sank into her anus. This was a whole new feeling for her, she hadn't yet had anyone who knew how to eat her ass like this, and on top of that Mephisto had a really long tongue. She couldn't tell how long he was astride her, but it was enough to make her completely drenched, with juices dripping down her thighs. Standing on slightly trembling legs, Felicia moaned in pleasure. Maybe she should have tried sex with a demon earlier?

The demon finally stood up collecting her juices on his hand and clung to her again

“I think you're starting to like it.” - he laughed and wiped his hand wet with her juices against her face, then kissed her

Normally she would have been disgusted, but now she returned his kiss by fighting back with her longer tongue with his tongue? As they pulled away from each other, a long tongue of about fifteen centimeters fell out of Felicia's mouth

"How...?" - she wondered playing up the fact that she could easily control him and could hide him in her mouth

"Part of the deal, baby" - Mephisto uninhibitedly sat down on the couch showing her a standing thirty centimeter red cock - "Maybe you want to test it?" - he pointed to his appendage

Hypnotized by the sight of his penis, Felicia tied her hair into a ponytail and knelt before him. First she embraced the head of the penis with her mouth, which was difficult given its width. She slowly took it into her mouth, wanting to test how much she could and the limits of her new powers, but she had no time to think. Mephisto put his hand on her head and pressed down as hard as he could. Fear appeared in her eyes as the huge penis almost pierced her throat, but other than a slight pain in her jaw and neck muscles, she felt nothing else, zero gag reflex, zero need to breathe, how could this be? She looked at the demon without understanding it, and he just smiled and lowered it into her esophagus, but lightly. The demon's cum warmed her from the inside and filled her with a new unknown energy. Still holding her by the hair, Mephisto pulled her head back

"Like it?" - he laughed as he watched real demonic energy enter the girl

“Shut up, if we're going to do it my way.” - she growled when her blue eyes took on an icy glow. She licked her lips, knelt more comfortably and set to work