Is there any link between being ually active and body hair growth?

Strange as this might sound - my partner and I (we are gay) have been in a monogamous relationship for almost 3 months. Recently we have noticed that both of us have developed much more body hair. Could this be a hormonal thing as we are intimate quite freaquintly? We have both been in monogamous relationships in the past, but neither of us has ever had this experience...