I (46yo male) own and self manage a small apartment complex and two of my tenants are a mother (62yo) and a daughter (26yo) living door next to the other. Tbh, I find them both very attractive, but that was never a criteria for something to avoid for me when looking for new tenants.
Me and the mother became very friendly as we have shared hobbies so I found myself hanging with her at her apartment sometimes after working hours to work on the hobbies (non sexual whatsoever). She liked to touch and rub me and one day with all that energy building up I started doing the same. Shortly we kissed and then I realized that I did something completely unprofessional. I told her that it was a mistake and I walked out to the door. She stopped me, she pulled my cock out of my pants and put it in her mouth. I stopped her and left.
I avoided her for about a month but eventually I had to fix something at her apartment. She came after me and seduced me and we had sex. After that it became a more frequent thing and we started having sex maybe once every 2 weeks. She started sending me text messages with sexual language. I mostly ignore them. I told her many times that this is inappropriate and she should find a man. But she mostly responds that it's just a dick and nothing more for her. She doesn't want any relationship.
I feel ashamed for having an unprofessional etiquette with my tenants. At first she kept it as a secret so I felt more comfortable with it. But now, every time I see her, even when her daughter is around, she acts very foolish, throwing sexual comments and basically hiding nothing. Her daughter looks at me very awkwardly.
Tenancy wise they are both great. I have zero complaints. But this interaction should stop. My concern is that if I stop it both the mother and daughter will leave and I hate to lose 2 good tenants at the same time. So I just keep fucking her once every few weeks when she has her urges