Ive actually hoped a story like this would appear, even if i had to write it myself. Does the mothers muscle mass grow in proportions to her belly, or does she gain size and strength with every month of successive impregnation? I wonder what hormonal changes would occur if the mom was pregnant with twins or triplets, causing her body to pump up with huge knots of muscle. The husband may also be left trembling with fear as he watches her working out, letting her exercise flow into her strong offspring.