Family Ties/Bolt for your bedroom before she sees you
You get into your room and quickly close the door behind you. Leaning against the door you put your hands on your crotch, squeezing your boner through your shorts. The fresh image of your mom removing her bra and her bouncing tits replays in your mind over and over. You make your way over to your bed and pull your shorts down, putting your hands down your boxers you start to rub your hard dick. It starts feeling good and you begin to stroke it to the thought of sucking on your mommy's huge tits. You start to stroke faster as you picture her hard pink nipples, wet from your mouth.
As it starts feeling better you continue jerking yourself faster, until the thud of footsteps coming down the hallway snaps you out of your perverted fantasy.
You stop and pull your shorts back up as the footsteps walk by your door and you breathe a sigh of relief. You hear your mom go into Heather's room and starts talking to her about something having to do with tomorrows trip. You can't really hear it and you ignore it anyways, frustrated that your little session was interrupted. The fantasy you had playing out in your head now ruined, you decide to turn on your tv and continue your video game from earlier in the evening.
After a few minutes your mother comes knocking on your door and walks in. You take one look at her and your fantasy comes rushing back. You eye her up and down noticing she's changed into her white lacey nightgown that just barely covers her perfectly round ass. She has a handful of clothes and asks if you're all packed for the trip. "Yeah, almost." you answer, feeling a bit nervous as her outfit is getting you hard again.
"Ok, well here is some of your clean clothes." she says. She bends over slightly to put your clothes down and you get a glimpse of her matching panties. "Don't stay up too late." she says as she leaves your room.
You get in bed and try to go to sleep but your fantasies of your mommy keep you wide awake and sexually frustrated. You feel too worked up and decide jerking off just won't do it tonight. Just then you have a crazy idea to get in bed with your mother. "It could work if you say you had a bad dream like you used to." you think to yourself.
It's just past 1 a.m. so you figure everyone in the house is asleep by now. As you sneak out into the hallway you start to make your way towards your parents room. But just as you close your door you hear a high pitched sound from Heather's room and notice her door is slightly open.