parenting partnerships. take a look. why don t we just do it? what? reporter: friends with kids. it s not just a stuff of hollywood movies. we really want to have a kid. share all the responsibility and just skip over the whole marriage thing. look what i have. your new cup. reporter: call it the modern modern family. . you say you broke all the rules. we did. bye-bye. reporter: they were co-workers before they were co-parents. you were her superior? i was. but we weren t we weren t messing around. yeah. so we weren t breaking every rule. not that. reporter: heidi and david friends for 20 years joked in college if neither had a child by 36, they d have one together. i wanted a partner in parenting. so i circled back to david and i said, i m ready. i all systems are go on my side and i would like to do this