Babies :)

Colleen • 19 years old, momma to a little boy Dakota & a little girl Kianna 💙❤
So everyone else in my family has a hard time putting my sisters baby to sleep she cries for hours, but whenever I have her she passes right out within latest 30 minutes . Could it be because she knows her cousin is in my belly and she likes to be near him?  Its extremely adorable and she is always kicking my belly to make him kick back (she is 7 months) and whenever she sleeps near me she is touching my belly so thats why I think she likes being around him and it makes her sleep easier. Anyone else every have anything like this happen?