Strip Bar is an area on the side street, next to a gym. It is opened between 14:00 and 24:00, however you cannot get in at the game start. First you must obtain a special pass, that can be granted by Nadja after raising her attitude above 50.
Erin is working in a Strip Bar as a stripper daily. As the night progress, she will loose parts of her clothing. After 19:00 Jake will appear at the bar, watching Erin strip. You can ask Erin for a private dance, after which you will end up in a VIP room, where additional interactions are available. You can also talk with Jake in a body of possessed women here to offer him services.