Giving you a chance to knock up Ashley (right before she takes a stab at it)

You scamper upstairs and knock on Ashley's door. You hear a muffled moaning and Amy shout, "Come in" so you open the door, Amy's assertion that even in Ashley's room, she was the one who you could get permission to enter from, gave you a boner for what felt like the hundredth time today.

Inside you saw Amy sitting on the floor, right where you'd sat down last night to watch a movie with your Childhood friend and crush, who was herself now on the ground in standard "Face down Ass Up" position, deepthroating Amy's cock while having her tits pinched and twisted by the woman who's dick she was worshipping.

"We're gonna play a game tonight Doug, and lucky for you its a win win situation here." She said, as she pulled hard on Ashley's tits, forcing her sister to move forward as much as possible. Amy let go of Ashley's tits and reached forward, managing to grab her little sister's ass checks firmly.

"You're gonna get to fuck your precious girlfriend's pussy tonight Doug." Amy said as her fingers slowly walked their way forward, pulling at the assflesh she was gripping and slowly making her way towards the dripping center.

"I'm even gonna take away all her contraceptives' for the next few weeks, so no morning after pill for this one." Amy said, her fingers now reaching Ashley's labia and tickling them almost teasingly.

"Here's the game though. When its time for you to cum pick wisely because If I cum tonight I'm gonna blow my load wherever you did. If I don't cum at all tonight then you guys are free to have whatever fun you want together and I won't stop you at all" She said, spreading Ashley's pussy wide. You watched entranced as the beautiful pink hole seemed to thrash and grasp, as if searching for a cock to pull in and milk dry.

"If that's what both you guys want it'll be easy to win, you just have to work together, Ashley simply won't try to make me cum and you'll just thrust away in her tight hole." Amy has you hypnotized as she pinches and pulls at Ashley's labia.

"But my little cuckquean slut of a sister can't live without being ordered around and she makes me cum, well Doug your choice suddenly matters too." Amy pulled her fingers back to Ashley's asscheeks, leaving only her two middle fingers tracing slow semicircles around Ashley's entrance.

"If you cum on her back, then you're free to go home and mom and I will continue to enjoy Ashley all to ourselves, If you cum in her ass then I'll fuck both of you to get myself off, but I'll be nice and ask and shit first." Amy slid the tips of her fingers into Ashley's pussy as she said this, sliding in and out and leaving a slimy trail of lubricant.

"If you blow a load in her pussy, I'm. Gonna. Knock. Her. Up. She's gonna be my bitch for life..." Amy started to trail off before snapping to your face and locking eyes with you, "But you will too Doug, and you two can love and kiss and touch each other as much as you want, as long as you come when I say come, *Cum* when I say cum, and make sure you leave your holes ready and open for whenever I wanna make use of my property." Amy said with a final pinch of Ashley's labia, before letting go of the assflesh she'd been squeezing, letting Ashley slide back to a more normal position.

Amy can see you both leaning towards the latter option, you and Ashley were both so naturally submissive, but she couldn’t make it easy, she had to make it a hard choice so she decided to make your favorite option even worse.

“I’m not kidding when I say you’d be my property. If I have friends over I might share my toys with them. If I’m feeling like doing some charity I might donate one of you to a homeless shelter for a night. If I need a urinal or cockwarmer during your wedding, you’d run from the altar and spread your holes for me.” Amy says as she slaps Ashley’s ass hard.

She looks at the two of you intimidatingly, “So Bitch and Bitchette, what's it going to be?"