He penetrates her with two fingers, then four, before fucking her hole with his entire fist and making her cum.
She rewards her stepson by spreading his thighs apart and licking his asshole. That turns him on so much, he busts his load all over face.
Hopefully her ex husband will never find out. But if he does…fuck it, who cares India is ready to pounce like a cougar in the Serengeti.