Now, i am no expert, but it seems to me that you were having a dream about impregnation. I see this in the fact that you start off by laying down, you expose your stomach, and he paints on you with white paint. Thinking about it, it would seem almost as if you see the man spreading his seminal fluids directly into your stomach or more so uterus, in your dream it just happens to be in a more ritualistic like manner. You then say you have curvy lines which can have a connection to life and vivaciousness, but again this is only my interpretation of the information you have given us.