He hears moaning of pleasure

He walks upstair because of a noise. In the Bathroom her hears. "Ohhh god this feels soooooo goodd mmmmm the dildo in my clit ohhhhhhh Fuck Fuckkkkkkk yessssssssssss" The female voice moans

The only people he liver her is his mom kate and his older sister Lisa (19) and Tasa (25). He think someone in trouble beause the woman in there keeps screaming gods name. He kicks the door open and..