First contact stories in which we CREATED the first contactees?

[seawasp]

This question came up on another list I'm on, so I'm wondering how many such stories have been done. The easiest category is the AI stories in which an AI "wakes up" and becomes the first "alien" intelligence we encounter, but how many are there in which we created our own biological first-contact situation (i.e, made by accident or deliberately another intelligent species that we have a first-contact interaction with)?