cohabitaging 

The idea that two elderly individuals of different sexes will live together platonically in one domicile to save on costs and increase shared experiences in their golden years.

Helen and Roger are cohabitaging.

cohabitaging by pcicc January 16, 2014

cohabiting 

To live together in a sexual relationship, especially when not legally married.

Woo Hoo hotness unlimited! If u keep on putting up pics like this, im definetly cohabiting with u in LA ;)

cohabiting by princez April 16, 2008

Cohabidating

Cohabidating is an arrangement whereby two people decide to live together on a longterm or permanent basis in an emotionally and/or sexually intimate relationship. The term is most frequently applied to couples who are not married. Such an arrangement often comes to be when both parties have succumbed to the social pressures to "move their relationship to the next level". This may also be followed by the purchase of a puppy a.k.a. test child and a joint checking account.

Hey, did you hear that John and Kim are cohabidating? Kim's mom is pretty old-fashioned, so she's not hot on her daughter living with her boyfriend before they decided to get hitched.

Cohabidating by ekey January 19, 2011