Having a hard time :(

So my sister is starting her photography business and she lives 45 mins away and asked me to be a model. She has another girl she's really good friends with and they took a couple of shoots and she posted multiple pictures of them on all the social media sites. Well I drove out to see her and she only wants to do head shots... ok... then she does mine and then does another friends and does regular model shoots.... is this a nice way of telling me I'm fat ? 😢 ill admit it I don't look 100% but by no means am I obese and I know what I can and cannot wear but is it really worse than I thought? Soooo sad 😩