You suggest that everyone get naked

You look from your mother to your sister, then back to your mom again, smiling wide. “Since we’re all going to be completely open with each other, and enjoying each other’s bodies from now on, what do you think about starting by getting out of our clothes?” Your hand slides down your mom’s back then up under the back of her robe, to cup her round, soft buttock and squeeze it firmly.

Mom lets out a soft “Oh!” and her face turns pink. “If you really want me to,” she says, “My body isn’t all that much to look at though. Not like you young kids.” She fiddles with the sash of her robe but glances at Abbie and hesitates.

Abbie speaks up, tugging your arm. “Hey Stretch, can I talk to you in private about this for a second?”

You’re confused by their hesitation, but you follow your sister from the living room into the family room. She turns to you, putting her arms around you. “I’ll do anything for you, Dave, even eat out Mom if that turns you on,” she says in a hushed voice, so your mom can’t hear from the next room. “It would be kinda weird and gross, but I’d do it for you. I think maybe it’ll be harder for Mom to do anything with me around, though. She’s not a slut like me who gets into threesomes for fun. She hasn't even dated a guy for years. You should give her some time to get used to the idea.”

You nod. “Yeah, you’re right.” You had gotten too enthusiastic and assumed the spell would be a ticket to automatic threesome action. You could order Mom to make out with Abbie, and even lick her daughter’s pussy, but Abbie is right, it would mess with Mom’s mind. Mom struggled with her feelings for you. If you want her to be comfortable with doing anything with Abbie that would certainly take some time.

You kiss your sister softly on the lips. “Thanks for reminding me.”

“Someone around here has to be thinking with their brain, Stretch.” She grins at you. “But I’m hoping it’s gonna be you most of the time, cause the way I feel now, my pussy wants to take over for me.”

That reminds you that according to the website, Abbie should get some contact with you today. She has to go to her final in a little while, so you should probably take care of that now. You’ll have all afternoon with Mom while Abbie is taking her test.

You take Abbie’s hand and lead her back to the living room. “Mom, Abbie told me she’s still a little shy about going naked around you,” you say. You think the lie will help Mom feel better than if you let her think she’s the reason you didn’t get what you wanted. “So we’re going to hold off on full nudism in the house until everyone is comfortable with it.”

Your mother looks relieved at that. “Whatever you think is best, Honey.

Now that you’re considering how your mom might feel about things, you think you’re going to have to be somewhat delicate about taking Abbie off to be alone with her. “Mom, we’ve already had some… alone time with each other, and we’ll have all afternoon together. Abbie only has a little time before she has to leave for campus, so I was thinking I’d take her to her room for a little while,” you say gently.

You’re surprised to hear your mother reply, “Don’t be silly Dave, take your sister to the big bed in my room.” She let out a soft chuckle. “That really should be your room. You’re the man of the house now. You should have the master bedroom.” She put a little extra emphasis on the word ‘master.’

“Besides,” Mom continued, “I have the impression Abbie can be quite, um, athletic in bed. You’ll want all the room you can get.” She winked at Abbie, who giggled.

You look at your mother with a quizzical frown. “You don’t mind that I’m, um, taking Abbie to bed, and not you?”

Your mom steps up to you and kisses you hard and deep, her tongue probing into your mouth, sliding over yours. When she pulls back from the kiss, she says, “I want you to be happy. If choosing your sister now makes you happy, that’s wonderful. Like you said, we’ll have all afternoon together. Enjoy yourself, Honey. I’ll call in sick to work and start making lunch.”

You stand staring in surprise for a moment or two, before Abbie tugs you by the arm, urging you toward the stairs. You shake out of your stun and hurry up to your mother’s bedroom. You close the door behind you. “It’s a little weird doing this in mom’s room, isn’t it?” you ask Abbie.

Your sister snickers. “You heard Mom, the master bedroom is yours now... Master,” she adds the last word with a slight tone of sarcasm, but much less than you would have expected. “Besides, I’m pretty sure you’re going to be ‘doing this’,” she makes air quotes, “in Mom soon enough. So you better get over doing it in her room.” She laughs. She pulls you towards the bed. “So, you’ve gotten to enjoy mom’s tits and mouth, but never actually got to good old P in V?” she asks, a grin spreading across her face. “That means technically I get to take your cherry," she says as she unbuckles your belt, and starts to open your jeans.

You hadn’t thought about that. You stop and wonder if maybe your first time should be with Mom.