My girlfriend is African American and the same height as me (5'11"). She has a bigger build, but it's more athletic than BBW since she ran track in high school. She is about 180 lbs and has the perfect "starter" body if she wanted to get muscular. She is naturally muscular, i.e her arms are naturally big and firm, and she has big trapezoids. She recently started going to the gym again and I would love it if she started to grow attached to being more muscular. She already knows about my submissive fantasies and we have wrestled once before. I let her win but I think it would be a dream come true if she became stronger than me to where I couldn't do anything about it when she wrestles and beats me. She has an incredible body already in terms of what I like, i.e. beautiful brown complexion, tall, big thighs and a big butt. I want to subtly encourage her to continue lifting but I don't want it to come across as me being unhappy with her current body. The next time I see her (long distance relationship) I am going to compliment her even more so on her gains, even if I don't necessarily see them.