Was in the same situation after taking in my daughters friend for a year. She was always horny as hell and would drain me every time. She told me that she wanted me to get her pregnant and had me cum in her pussy every time we got together. Luckily I didn't knock her up and she moved back with her parents soon after. But she would always flirt and give me a kiss when ever she came to see my daughter. Do miss the sex though. She was good at it.