Deciding to relax one day, you order the full package from Karen's Succubus Menu at the Tel'Adre spa. The menu simply stated that Karen, in her Succubus form, would provide to any penis-having patron a hand job, boob job, blowjob, and finally "penetration of my organ, resulting in climactic release". The process is completely safe. Karen is not a real succubus, but is such a master of transformation that this is functionally irrelevant. She can even do things a normal succubus cannot.