Later that evening...

Lilith sighed, and sipped from her glass of wine. It had been a very long day, but she was sure John was making progress, as long as she could help him keep up his 'treatment'.

It was 10pm already, John had retired to his room and she had the lounge to herself. She had no idea what to do. Absent-mindedly she slowly pinched and teased her nipples; having no bra on all day had left them tender and excited.

She looked over at her handbag and saw the DVD the doctor had given her. It was as good a moment as any to see what it contained.

She placed it in the DVD player and switched the TV on. There was no menu, the DVD started playing at once, and started with a countdown from 15 to 1.

As soon as it started Lilith could hear slight whispering sounds, and a pervasive throbbing noise. She stared at the screen watching the numbers count down.

*10*

She could swear she heard the whispering getting louder but it was so hard to make out what was saying

*9*

A faint spiral flashed on screen, causing Lilith to stare closely. A small white dot kept blinking in the centre, focusing her attention

*8*

The briefest flash of an image kit her eyes. She wasn't sure what it was, but it seemed like a naked woman with big breasts

*7*

Lilith was fascinated now. Her right hand slowly caressing her left breast. The whispering was louder now, she thought she heard the word "slut", "naked" and "horny"

*6*

She could see the screen was showing the spiral again, and she couldn't take her eyes away from the centre. New words and pictures flashed before her eyes but she could focus properly on them. Her boobs tingled as she roughly played with them.

*5*

Her left hand dropped the remote and found her panties. She was incredibly wet now and her hand quickly slipped in and caressed her clit with practiced ease.

*4*

She could stop if she wanted to. She panted lightly as she watched, not blinking, taking everything in

*3*

She heard a creak from the floorboards upstairs but paid it no mind. She had to watch closely. It was important for a horny slut to watch closely.

*2*

She was building to an orgasm, she could feel it. Her breathing laboured more, and her hands worked harder across all her parts. She was lost to the rhythm of her own touch

*1*

As she watched the lounge door opened softly. John saw his mother masturbating furiously on the sofa, unaware of his presence.

*0*

Suddenly the screen lit up with thousands of pictures, women with huge tits flashed upon the screen, some naked, some dressed in lingerie, swimming costumes and tight fitting clothes. Words flashed between the pictures so fast you could not read them, they buried deep into the subconscious.

Lilith stared openly at the screen, drooling slightly as she built up to orgasm. She suddenly came, screaming out in ecstasy until the DVD stopped. She lay on the sofa, fingers deep inside her and kneading her huge boobs, panting in the afterglow.

Behind her, John was still staring at the screen, open mouthed and in shock. His cock was in his hands and cum leaked from the tip.

Blinking, John quickly gained his composure and sneaked upstairs, images and words flashing behind his eyes.

As he shut the door Lilith awoke from her reverie. She pulled her hands away and sat up. Her heart was pounding and her eyes ached. Looking around her saw the room empty.

She got up to clean herself and noticed something strange on the back of the sofa. A white creamy mark. Investigating further she touched it. It can only be cum she thought, realising with horror that John must have been behind her. She quickly ran into the bathroom in shame, absent-mindedly licking her fingers as she did so.