This ain't an m-preg fic either, Faith. He most definitely wasn't the one who did the popping.

Angel follows her gaze, his mind racing to catch up with her assumption, the thought crashing against logic and reason so hard he would've dropped whatever was in his arms had it not been his son. His head snaps back to her.

"No. I mean, she's sort of stepped into the role — for him, for Connor — but she's not his mother. That's... a long story."

One he'd rather not tell here goes unsaid, but is very much implied.