My son's a fucking gigolo!

My son is 21 and lives with me. He goes to school and pays rent here. He told me he got a job in online marketing. I didn't really ask questions because tbh that sounded boring. He had dropped his phone in the toilet so it put it in a bag of rice for him but he just bought himself another one. When his phone finally turned back on I was gonna just give it to me daughter. She lives with her dad but comes here on the weekends and doesn't have a phone at the moment. When I went on the phone I saw text messages between women with my son and yeah my son is a fucking gigolo. I need to confront him on this, but I'm scared he will just get mad at me and move out. I don't want him to just leave but this gigolo stuff needs to stop!