Are there women in Paradise other than the Houris who serve as attendants or companions, and are they permissible for a believer to have sexual intercourse with and lie with?

There is nothing authentically established in the sound hadiths concerning the existence of servants, maids, or handmaidens for the houris in Paradise for the believer. All that has been narrated regarding this, such as the hadith by Al-Bazzar from Imran ibn Husayn and Abu Hurayrah, and the hadith by Abu Ya'la from Ibn Mas'ud, are fabricated and weak hadiths that cannot be authentically attributed to the Prophet, may Allah’s prayers and peace be upon him. A "wasif" is a servant, whether a boy or a girl.