Unspoken Pleasure by Erotica

Use Your Sisters Instead: EP5

"Fine," Michael said. He walked over to the fridge and pouted loudly as he looked. "Ooo, looks like Chastity is back in the rotation." "There you go."

A few minutes later, dinner was done, and Mary called for the kids to eat. Hope and Tabitha appeared immediately, but neither Chastity nor Michael showed up. "It shouldn't take so long," Mary said.

"I'm sure that Michael is just doing what he needs to, Mom," Hope said, "We should try to be respectful of their privacy."

Mary gave the girls their meals, but she couldn't stop worrying that something might be wrong. Finally, she gave up and went upstairs. Michael had asked for her help after all - she wasn't snooping, just being supportive. She found the siblings in Chastity's room. The blonde lay back in front of her brother, but he was just standing between her legs. Mary waited by the doorway. She didn't want to interrupt them unless she needed to. Michael clearly had one hand on his cock (Mary had decided to use his word for it from then on), but his other was squeezing his sister's ample breasts. He slid from one to the other - cupping, squeezing, pinching at the nipple. Chastity smiled hungrily up at her brother. Her hands were down at her sex and she was moving them in a way that suggested she was... Oh no. This wouldn't do. It would not do at all.

Mary burst into the room. "Chastity! I've finally got Michael in order and now you're doing the same thing? Come on now dear, you know better than that."

Both siblings froze and stared at their mother. The scent of Chastity's sex filled Mary's nose. The doting mother immediately felt uncomfortable, like she'd done something wrong. But then Mary's righteous anger took over. Why did they all have to act so ill-behaved?

"Well?" Mary asked, "I'm waiting for an explanation."

"We. That is. I mean, Mom," Michael said. His penis slowly deflated in his hand.

"It's my fault," Chastity said.

"Well, obviously," Mary said.

"No no. What I mean is, Michael came in here all good and ready like you taught him. But when he tried to put it in me it, like, wouldn't go. You know?"

Mary gave her daughter a look that said that, clearly, she did not know. Everything had slid in so easily before. What was different this time?

"I was, ummm. God, Mom, I can't believe you're making me say this. I wasn't w... I mean, I lacked lubrication. As Tabitha might put it."

"Yes, Mom," Michael said, "That's exactly what happened. I tried to put it in Chastity but she was dry and so we couldn't."

"Right, so I said, let me get myself ready for you," Chastity said, "That's all we were doing."

"Oh honey," Mary said, her heart suddenly aching for her children, "Of course I understand. It's natural that you're not going to be ready for your brother all the time. But you can't rub yourself like that, dear." "But it was really painful for both of us," Chastity said. "Maybe if my stupid brother's stupid dick wasn't so big it'd be easier, but what can we do?"

"You need to let Michael do it for you," Mary said, "He should get you ready before he puts it in you."

"Oh yes!" Chastity said, "Mom, that's a great idea."

"Just make sure you show him what to do, first," Mary said

"Right. Don't just squeeze my tit, you big dope. You're not milking me. Reach down and put your finger here," Chastity said. She dragged her brother's hand down below her blonde pubes. "Yes, there you go. That feels... OH!"

"Sounds like you're more than wet enough," Mary said. She saw the look on the siblings' faces and decided to step away. They needed to adjust to doing this on their own. Still, she waited by the door, leaving it open a crack to listen, just in case anything went wrong.

to put it in you now, sis," she

OK," Chastity said, "Just keep rubbing there. Yes. That way I don't, ummmm, get dry again

thing," Michael said.

yeah. I feel it. Feel myself getting...

medical issue, she thought. Or perhaps maybe she should buy some lube. All three sisters might need it at some point. "Give it to me," Chastity said, "Faster... ah... ah...

too. Her body seemed to judder with every one of Michael's ejaculations. Back arched. Blonde hair hanging down. Large breasts shaking. Mouth open in a silent scream. Then, Chastity's body relaxed and she dropped back to the

that moment, Mary thought, her chest shiny with sweat. Michael stared down at his sister, gasping. Chastity smiled and reached up, patted

boy," Chastity said, "Giving

to agree. She wondered what had gotten

*

that Chastity shared their new

is very important," Mary said, "I don't want any of you getting hurt by not following proper behaviors. Just remember to make sure Michael does it for you. Try to think about it as a kind of tit

*

bedroom, Mary couldn't help but

"Like this?" he asked.

so hard. You're rubbing my pussy

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Michael said with a bit of

steel or something cause that fucking hurts," Hope

"Sorry," Michael said.

OK, Honey. I know

Hope's door open a little more, so she could see what was going on. Hope was in the usual position on her back. Michael

be my cock if I was a boy. Just think of it

going by now," Michael

"Good for Chastity."

As much as she wanted to leave this project to her children, Mary found she was strangely disappointed whenever she missed one of their sessions.

good job

"Ssssssooooo good."

think I can put it

"Definitely."

his hand off his sister's little breast, but Hope stopped him. "Here, let me get that for you," she

as

of his sister, then stiffened. Mary knew all

Michael groaned and that was it. The two of them strained

stayed inside to his sister as they both

much closer. It felt like they'd all been fighting forever. Especially after John died. But these little moments of kindness were happening more and more. They really were acting like

*

to an empty house. She thought the kids must have all gone out. Then she heard voices coming from Tabitha's room. Mary felt a little frustrated. They knew they