Richie and Buddy, wearing just the masks protecting their identities, cocks still semi hard from fucking my sister in front of my eyes froze when the car hooted.

Buddy was first to react. “Put a knife to her throat..and if she makes a sound use it” he ordered. Richie obeyed by pulling Colleen to her knees and putting one hand over her mouth and a blade to her throat which forced her cheek against his now flaccid cock and spent hairy ball sac.

Buddy in turn moved behind the still partially open lounge door, knife in hand and waited. We all heard the key opening the front door and I saw Buddies muscles tense as he waited naked to punce.

“Hey kids Mom,s home” Came the call from the front door as our Mom entered the house. “ Dads staying on golfing again as usual” she continued with a sigh in her voice as she entered the lounge.

Mom froze at the sight she walked in on. Her 18 year old daughter on her knees naked held by a masked raider who too was naked and me, her son tied to a chair similarly naked. She was about to scream but the slam of the lounge door and Buddy,s hand smothering her mouth stopped that from happening.

“Quiet bitch…one sound and your kids are getting cut up..understand bitch…understand” Buddy rasped in her ear. Moms eyes watered as she nodded confirmation. He carried on “ Good, I am going to let you go but try anything and we are going to start slashing your kids faces till you wouldn’t recognise them, you want that?”. Mom frantically nodded no “. “ Good then we understand each other”. Buddy pushed my Mom away from him and I saw he had started to get a stiffy on.

“Your daughter has been entertaining us” Buddy told my Mom. “And now you are here, I am sure you want to help her out…..strip. Don’t be shy Mommy look at your kids, they are all naked as the day they came out of your cunt…..and your son and daughter there, well we have watched them fuck each other till she got his spunk in her, and now we are going to see him do the same to his Mommy…if not “ He motioned vicious slashing with his knife. “ Strip Mommy”.

I sat there tied to the chair gagged, hearing what Buddy was telling my Mom and could see the expression on her stunned face as she was told her siblings had fucked each other for their amusement, and that she was now ensnared in this nightmare and would be next…and I felt my cock harden to this new twist by getting hard at the thought of my Mom and what I would be “made

“ to do.

My Mom, her hands shaking, started to unbutton her sleeveless flower patterned blouse exposing the cleavage between her breasts enhanced by her white bra. Buddy pulled the unbuttoned garment off her and she reacted by covering her tits with her arms.

“Carry on Mommy…now the skirt” Buddy ordered.

My Mom lowered her still trembling hands to the waist of her pale grey skirt and unbuttoned it and it fell to the floor around her ankles leaving her standing in just her underwear. I had seen Mom,s tanned body in a one piece swimsuit many times,but she had never worn a bikini since we were kids, and I couldn,t help appreciating how good she looked for a middle aged woman standing there in bra and panties.

“Keep going Mommy…… We want you as naked as your son and daughter here “ Buddy prompted and gestured with his knife towards her siblings “or you know what will happen”.

The look on Mom,s face expressed her helplessness as she slowly reached her hands around to unclasp her bra and remove it exposing her tits to us.