Thanks to everyone for the thoughtful (and respectful) responses.
The Title of my post WAS a mistake - I'd intended for it to say "...Don't Expect Me To Lie To Mine."
I caught it early but decided to leave it because -although I won't go around telling other people's kids that "Mommy and Daddy (or Mommy) are liars, I won't necessarily swear to whatever they've made up. One thing I've learned from this is that it's time to have the "Where babies come from" talk with my daughter. "Make a Baby" is too open ended and if the kids are having this conversation I want to make sure my daughter is hearing it from me.
Dear Kate: You may have been 5 when your moms explained about sperm donors but I'm not going to lie I'm terrified of seeing my daughter picture "Mommy and Daddy inserting Tab A into slot B." Because I'm told that the first question after you explain it is, "YOU DID THAT?"
Let's hope she never, ever, ever finds this blog.