When Holly is getting lovies, Gracie sits there and looks at us like "where's mine"? She then jumps up on me and takes her designated spot, pushing Holly out of the way. When Gracie gets her lovies, Holly gets up on my shoulder and barks at Gracie. I have to tell Holly "OFF" to get her to leave Gracie and I alone. The short answer is they both get jealous. I have not had a gentleman friend since I got them so I don't know how they would react to kissing.