I find the whole premise of this show distasteful and VERY implausible. I do not have a problem with older woman/younger man relationships, I prefer them myself. What I do find distasteful is that it is between a guys mother and his best friend and in the apartment that the friends share, it shows that they gave no consideration to the son/friend. All relationships affect other people and their feelings/relationships should at least be considered even if they are going to be discarded or ignored.
I do not know about other people but I would not want to try to sleep each night knowing that my "best friend" is banging my mother in the next room. I would not be comfortable getting up in the morning and seeing my mother in her underwear at the breakfast table.
My first reaction would be to move out of the apartment, if they want to have a relationship fine but it does not have to be thrust into the sons face every moment of the day. This type of situation would adversely affect the relationships of the son with both the "best friend" and mother. In fact I would no longer consider him my best friend.
What is even more implausible is that any middle aged woman (especially a very beautiful & sexy one, ex Bay Watch babe) would even consider having a serious long term relationship with a man that behaves like a child and who's IQ probably does not even reach double digits. The only thing they could have in common is sex which is not enough to build a long lasting relationship on, trust me, I know from experience.
This is indicative of some of the morals being espoused on US TV shows these days. Another example is Pretty Little Liars, 15yr old girl having a sexual relationship with her 20-something teacher, wrong and illegal on so many levels, not to mention that they meet in a bar and have sex within minutes in a dirty disgusting toilet (at least 2 laws broken right there, 15yr old in a bar & statutory rape/sex with a minor).
