Is it normal friend wants me to be nude model
I'm a girl and my friend is a boy, he's a budding artist and he asked me to be his model. fine, i modeled for him quite a few times, he's really improved over the years. then he wants me to be his nude model, i told him no at first but after he told me i was the only one he could ever ask for this, i caved in and became his nude model for about a year now. now he says he wants to touch my body as "research" to see how the body would react to certain things, like how would my boobs be if a guy was holding them a certain way. apparently he wants to draw me naked with another guy in the picture...he says it has nothing to do with me, that its really just him practicing his artistic skills. he's a good friend of mine and all but i'm not really sure if i should be doing this much for him. am i being selfish? what would you other ladies out there do, how far would you go for your best friend? is it normal for an artist to ask this much of their models?