Nothing has ever sounded better.

"Please, that sounds so hot," you say. You like to believe you're usually more eloquent, but Sarah's not the only one who's a bit dazed from pleasure.

"Okay," she says, still trying to catch her breath. "Lay down and just give me a second."

She doesn't seem inclined to give you much room - not that you're complaining - so you curl up next to her. One pillow got shoved off the bed during your fucking, and the other is crunched up under Sarah's head so you rest your head on her chest. She rests her chin on your head and lazily begins running her fingers over your back. With your ear pressed against her chest, you can hear her heartbeat, slowing as she comes down from her orgasm. You're a little worried she could fall asleep like this, but this is also euphoric enough that you would be happy staying here forever.

Luckily, you get both. After a few minutes of lying together, Sarah says, "Okay, I think I'm recovered enough to finish you off. Let me grab some water first, though; my mouth is dry." You reluctantly let her up. She stumbles as she gets to her feet, her legs still shaky from what you did to her. You grin to yourself. Sarah staggers over towards the wall and grabs a water bottle off the windowsill.

"Is that yours?" You ask.

She shrugs, mid-drink. "I think it's Grace's," she says as she finishes swallowing. God, you're excited to see her swallow something else in a a minute. "I'm not worried about cooties or anything. And I really don't want to get dressed."

"Come to think of it," you reply. "I really don't want you to get dressed either."

She winks at you as she finishes off the water bottle. She sets it back on the window sill and then freezes, her eyes locked on something out the window. You're worried that Grace and Tori are able to see her naked through the window and that she's embarrassed by it. She makes no move to cover herself up, though.

"What's up?" You ask.

She seems at a loss for words for a second before saying, "Come see for yourself."

You get up and go over to the window. You don't bother covering up either, partially because she hasn't and partially because you don't think anyone could see below your waist from the ground outside. You look out the window and see Grace and Tori still in the hot tub, but not the way you left them. Both of them have removed their bikini tops and are sitting right next to each other. Tori even has her arm around Grace. And as you continue to watch, you notice that Tori other arm is reaching below the foamy surface of the hot tub, at an angle that indicates...

"They're fucking," you say, stunned. Now that you've realized it, it seems obvious. Tori is definitely finger-blasting the party's host in her hot tub. Grace's head lolls back in pleasure. Neither of the girls have noticed you and Sarah watching them through the window.

"That's one way to break in a new hot tub," Sarah says.

An idea enters your head. It would be incredibly hot but you're also worried that asking for it could offend Sarah and make her leave you with blue balls. Then again, this is a once-in-a-lifetime chance.