You got back home from school at about 2:30. Nothing interesting happened, you had a quiz, did some reading, had some homework, but now that's all over and the weekend has begun. You open the front door to your house with the keys and call out to anyone who might be here, "Hey, is anyone home?"

After hearing no reply, you lock the front door and walk to the living room to watch some TV. After about a half hour of channel surfing, and seeing nothing that interests you, there's a knock at the door.

"I'm coming!" you yell.

knock, knock

"I said I got it!"

You open the front door to and come face to face with...

You open the door to find your older sister Crystal on the other side. Crystal stood a head taller than you, leaving you at eye level with her big c-cup breasts. She had red hair which flowed past her shoulders, and was wearing the typical schoolgirl outfit. Knee high socks, black sensible shoes, blue skirt, black sweater vest, and under that a white button up shirt with the top buttons open, showing off ample cleavage.

"Hey, what's up sis?" You greet her.

"Hi Doug." Crystal says as she pulls you in for a big hug. This smashes your face right into her bosom as her cleavage engulfs your face. You also feel a warm poke coming from her groin area.

"How was your day?" You say with your face in her chest. Your words are muffled by her warm boob flesh.

"It was long. Like super long. Can't wait to get home and just relax." Crystal releases you from the bear hug she had you in before you passed out and walked up stairs to her room. You returned to the living room to see if there was anything good on TV. After a while you hear noise coming from Crystal's room. "No, No, No." You hear Crystal say, so you rush up there to see whats wrong. You enter the room and see Crystal digging through her drawers behind the bed. Clothes are flying out as she searches in them, the only thing you see pop out from the bed was her red hair.

"Is something wrong?"

"I just forgot I left something in my locker and I really need it right now." She still frantically searches her dresser as she talks to you.

"What is it? Maybe I can help?" Your sister's head pokes out from behind the bed with a wide smile on her face.

"You'll help me?"

"Sure, I'll help if I can. What did you forget?"

Crystal gets up from her knees and stands up to face you.

"Well, you see..." Crystal said awkwardly. "I've forgotten my homework and books back at school..."

"And?" You raise an eyebrow seriously. Sometimes, it was hard to tell who the older sibling was, given how immature Crystal could be.

"And, it turns out, tonight, I've got fucktoy duty with mom tonight." Crystal explained. "Normally, I'd be happy to ditch my homework in favor of mom fucking my brains out, but Mrs. Ferguson will have my ass if I fail to complete another assignment."

"And who's fault is that?" You tell your sister seriously.

"Could you cover my fucktoy duty tonight?" Crystal requested. "Mom doesn't care who she fucks, as long as she's satisfied herself. C'mon!"

This was an easy 'no.' Crystal had to pay for her own actions; if she couldn't get her homework done, that was her fault, not yours.

"Come on, Doug!" Crystal pleaded. "I'll do your homework too!!"

This was a somewhat enticing offer.... "I don't know..." You said teasingly.

"Fine, I'll do your homework, AND your chores!" Crystal offered out of desperation as their mom, Lisa, walked through the door, completely naked, her massive cock erect, and a look of strong sexual desire.

"Ready to go, Crystal?" She asked lustfully. Crystal turned to you with an expression of legitimate desperation.

You hesitate on these words for a while, questioning whether or not to let Crystal off the hook so easily. Finally, you came to your conclusion: