Yes you warn her

Was that dad I just heard..?

Sarah suddenly sits up, pulling her panties straight up her legs she spins around on her chair suddenly and begins writing on her homework, seemingly distracted as even you know the answer she just put to one of the questions is wrong. Her dad knocks once loudly before bursting into the room.

"You okay sare-bear?" he asks as he looks around the room, "I heard you say something.." he trails off, seemingly disappointed to find his daughter doing homework, did he know she was masturbating?

"Y-yes I'm fine daddy.. just had a hard question." Sarah replies, she's better at acting than you expected. You realise she probably has to hide a lot from her father.

"Okay well, try and keep it down." he slams the door behind himself before heading downstairs. You try to put the thought of masturbating back into Sarah's head but she ignores it now, focusing on finishing her homework. She's clearly terrified of her dad coming back in.

She finishes up her homework fairly quickly and from your calculations she gets every question after the wrong one correct, before stuffing the sheet of paper into a folder in her bag. She then takes her bowl downstairs, grabs her dads and washes and dries everything before heading back up to her room. She undresses quickly, unbuttoning her shirt she reveals two very well developed breasts for her age, held up by a bra which appears much too small for her. She pulls the bra off and then rubs them uncomfortably, before reaching behind herself and rubbing where there's a clear deep indent from the bra strap in her back. You feel yourself getting excited staring at her naked breasts, before casually pulling out some paper work and flicking through it in case Afriel is somehow watching you.

She pulls her panties off slowly, her ass is just as impressive as her tits you find, and the view from behind is like something straight out of a porno, her pussy visible between her legs. You clear your throat and continue flicking through papers, pretending not to notice how perky her ass and tits naturally are as she stands up straight. She then pulls on a pair of ragged, plain white pyjamas before climbing into bed. The duvet cover barely covers her, but Sarah drifts off to sleep quite quickly.