akun50 said:
Pretty sure it's just a joke about camera angles, because it looks like Aku Aku is giving her "The D".
That's not the joke.
Aku doesn't have a lower body for starters, and his expression is supposed to look malevolent, not dirty. He's also to her side and not really behind her. Her expression is supposed to seem lewd, but it's not really related to how his expression ends up looking.
The joke is that the moment the camera caught made their innocent poses look different than they intended. His eyes end up glowing making him seem sinister and her eyes are caught in mid blink.
She ends up with an Ahego face, and he ends up looking evil and possessed.