Brandon made it very clear in previous episodes that they were not using any form of birth control nor do they intend to. If my 27 year old was living in my home I wouldn’t be condoning risking an “oopsie” under my roof with a woman he has only spent so much time with in person by putting them in the same room. I am far from prude but I’m with mom on the separate rooms. If he has his own place then that’s his choice and he can deal with any repercussions.