Many of the campers have, accidentally or otherwise, called Milla Vodello "mom". He sees how she delights in it, face warming with laughter as she reassures the childrens' embarrassment or gives them permission to be their "camp mom". The young Razputin is no different, snapping down his goggles once the boy realizes his slip. Milla gives him a hug, gratified that he trusts and cares about her so much.
When Sasha hears Razputin call him "dad" in his raspy voice, the careful angles of his mind gently unfold, and he allows the tears to overflow.
(Only to immediately reassure his son that they're happy tears, and no Razputin you didn't "trigger an underlying trauma regarding the unconscious father archetype".)
Gee Raz How Come You Get Two Sets Of Parents (Psychonauts; Razputin & Sasha, Milla)
When Sasha hears Razputin call him "dad" in his raspy voice, the careful angles of his mind gently unfold, and he allows the tears to overflow.
(Only to immediately reassure his son that they're happy tears, and no Razputin you didn't "trigger an underlying trauma regarding the unconscious father archetype".)