One favor deserves another, I would think! If I invite you in for refreshments, I think you know what will happen!Many years ago - I when I was in my early twenties - I was paid with sex on two occasions. Both times, mature women who had locked themselves out of their flats. I got them in and was offered some refreshment, which led pretty quickly to sex. One turned into a longer term relationship where I would call round when I needed to unload if I knew her husband wasn’t home, the other was just a one-off.