Meg and Samantha are talking

You step out into the hallway, the dim glow from the nightlight in the bathroom casting just enough light to reveal the two sisters standing close together. Megan is wearing one of your t-shirts that hangs to mid-thigh, her bare legs visible in the soft glow. Sam is similarly dressed in one of Josh's shirts, though it's even shorter on her. Their bare feet whisper against the carpet as they shift their weight.

"...and he's so good with his hands," Sam whispers, nodding toward the direction of your bedroom. "I mean, the way he grabbed me earlier? God, I've never had someone just... manhandle my tits like that before."

Both women turn their heads toward you at the same time, their conversation stopping mid-sentence. Megan's eyes meet yours with a mischievous glint, while Sam's face flushes pinker than it already was.

"Dan," Megan says, speaking softly so she doesn't wake anyone else. "We were just... talking." She glances back at Sam, who nods in agreement. "And... we wanted to know if you'd be interested in joining us."

Sam shifts her weight from foot to foot, looking up at you through her lashes. "I know you're married to my sister and all," she begins, speaking quietly, "but... I really liked what you did earlier. And... I know my sister's pretty adventurous," she adds with a small, hopeful smile.

Megan moves closer to you, her bare thigh pressing against yours. "You don't have to," she murmurs, her breath warm against your neck. "But... we were thinking about it." She glances down at Sam's hand, still touching her skin where you had touched her. "And I think she really wants you to."

"What exactly are you suggesting here?" I ask.

Megan's hand comes up to rest on your chest, her fingers curling slightly against the fabric of your shirt. "I'm suggesting we go back to our room," she says softly. "And that you and I..." She pauses, looking at Sam. "That you and I trade partners for the night."

Sam nods eagerly, biting her lower lip. "I mean, I wouldn't expect you to just... do it," she clarifies quickly. "But I know you liked touching me earlier, and I really liked it too. And Josh... he's always wanted to try something like this." She moves closer to you, her fingers now playing with the hem of your shirt.