Long ago I was invited to the apartment of a chick. When I got there, she had an infant. I kept an eye on the door and left as soon as I could, never seeing her again.
A long time ago, a woman made me an offer in the grocery store. But she also said she had a baby, so I turned her down. She was attractive, so the sex would have been great, but there was that baby.
Sex in exchange for changing diapers at age 25 is hardly the basis for a lasting relationship, IMO. Totally transactional