I got it by accident. First find Mac in the asylum, capture ghost and then find him somewhere on a sofa, then I called Tess bot and she appeared a bit horny when watching mac and after like 1 or 2 minutes she said something and bot got disabled. After that Tess was quickly on the scene. (The bot will have a hand in her crotch, that is the indication that she is horny)
Note: Mac has to have only 1 girl on the couch and that is Harleen