A Mpreg Story About Two Bottoms Taking Turns

This story features mutual tops and bottoms, both characters can bear children, and they dote on each other. Same-sex marriage is legal, and people of any gender can have children. Straight guy x 0.5 Marriage before love, with both of them fighting to be the bottom. (The main story is full of potential trigger points. To avoid spoilers, I won't list them one by one.) Straight guy: "I bent for you. Can't you let me enjoy it? I bent but didn't get to be the bottom. What a raw deal." 0.5: "You're a straight guy, and the moment you bend, you expect to lie flat? What makes you think it's that easy? Get to work." Theme: A harmonious family brings prosperity to all