Yoga Field

i recently began going out with guy.
he says he like the way my figure is and very pleased but sometimes he tells me that if i work out on my legs and abdomen, i’d look like playmate girls though he would add the same above comment right away.
i’m too busy and lazy to go join gym.
if you were in my shoes, what would you do?
i’m thinking about yoga excercise at home… any tips?