Aside from a full explination of what's going on, possibly access to some of his powers

"Well, it seems I have some pretty impressive abilities in me, it would be nice if I could access them." Danny said to her. "It could be aranged, but how do we know you wouldn't use them against us?" Phoebe said sitting up. "I promise, and I am a man of my word." Danny said looking at Phoebe. "Maybe later, but how about something else, I know something you'd like, wait right here." Phoebe said leaving the room. A minute later, another woman who looked like she was related to Phoebe came in, except this woman was perfect in every way, which caused Danny to get an instant erection. "There's another sister?" Danny asked, seeming surprised. "I am P, We found a spell that would allow us to combine the four of us into one physically perfect being." She said as she walked over to Danny with a voice that could of made him cum just from speaking, she got on the bed and got on her hands and knees with her ass pointed at him, "Why don't you come over here and show us how excited you are." she said to him seductively.
Danny went over and placed his hands on her hips and rammed himself in, it feeling perfect inside of her, he doubt he would ever pull out. He started thrusting into her slowly at first, "Come on, fuck me harder than you ever fucked anyone before." she said grinding against him. Danny decided to appease her and fucked her as harder than he ever did before. After a hour of multiple positions, both of them felt exausted and P seperated back into the four sisters, "Damn, no one's ever been able to keep up with P before." Paige said crawling over to Danny and laying next to him.