One verse

Srimad Bhagavatam 6.14.30

6.14.30

सापि तत्प्राशनादेव चित्रकेतोरधारयत् । गर्भं कृतद्युतिर्देवी कृत्तिकाग्नेरिवात्मजम् ॥ ३० ॥

sapi tat-prasanad eva citraketor adharayat garbham krtadyutir devi krttikagner ivatmajam

sa
she
api
even
tat-prasanat
by eating the remnants of food from the great sacrifice
eva
indeed
citraketoh
from King Citraketu
adharayat
bore
garbham
pregnancy
krtadyutih
Queen Krtadyuti
devi
the goddess
krttika
Krttika
agneh
from Agni
iva
as
atma-jam
a son.

As Krttikadevi, after receiving the semen of Lord Siva from Agni, conceived a child named Skanda (Karttikeya), Krtadyuti, having received semen from Citraketu, became pregnant after eating remnants of food from the yajna performed by Angira.