Family Ties/Offer to ride with Heather to drop off JT.
You help Heather pack up JT into his car seat and sling the diaper bag over your shoulder to walk it out to your sisters car. Once you have your nephew all settled in you climb into the passenger seat and the two of you start driving towards your dad's and Jacob's house. "Thanks for riding with me Timmy.., it was really sweet of you." Heather lets out an exasperated sigh. "I hate coming over here but Jake is his daddy..." She says, her voice trailing off.
"No problem sis."You smile as Heather pulls the car into the driveway of your dads house. You grab the bag while you sister take JT up to the doorway and knock on the door which is quickly answered by Jacob. Now 14 your brother seems like a completely different person, you know he's a father but it's more than that.
Your older brother scoops JT up in his arms and cradles him against himself as he finally turns his attention to the two of you. "Hey Timmy.., hey sis..." Heather only nods her head, obviously fighting the images of Jacob fucking another girl behind her back after knocking her up and declaring her his soulmate.
"So...ah... Me and dad will bring him back over on Sunday when we're there for the twin's birthday party."
"Fine..." Heather says trying to keep her voice even. Than with out another word she turns on her heal and walk back to the car.
You look up at Jacob who is standing there rubbing his son's back shaking his head. "I royally fucked up..." He whispers. "Think she will ever forgive me?"
You consider the question for a moment. "Forgive you..., yeah, eventually. Fuck you again...." You shake your head. "Heather and Nikki are getting married as soon as Heather turns 18. If I were you I would just be happy for her and move on." With that said you wave at your dad and then head to the car, Heather taking off before you even have a chance to buckle you seat belt.
The first half of the drive home Heather is completely quiet, then, at a stop light she cups on of her swollen, milk filled boobs and gives it a gentle squeeze. " God, I just fed him and hour ago and they already feel heavy..." She complains.
You swallow hard as you watch her hand cup her breast. "I could help...." You offer in barely a whisper.
Heather lets out a throaty chuckle assuming you are kidding. "Ohh you want some titty milk do ya!" Heather then looks at you, noticing your tongue gliding across your lips hungrily as you stare at her boobs, causing her amused expression to fade into surprise. "Are you serious?"
"Well..., I really didn't eat any breakfast and I'm starting to get...., hungry."
Heather's eyes widen, "Timmy.., I don't..., I...." Heather is cut off by some impatient asshole hunking his horn from the car behind yours. "Damn it..." Heather whines, distracting her momentarily from what you had just suggested. As she speeds through the intersection you decide to drop it. About 5 minutes from the house Heather abruptly pulls the car into a secluded parking lot behind an abandoned building and finally looks back over at you. "Timmy.., were serious? Before..., about wanting my milk?" She whispers. T he look in her eyes is some were between resignment and lust, causing your cock to instantly harden, luckily you wore your overalls and they do a pretty good job at concealing your boner. "Yeah..., I am very serious Heather. I wanna taste your milk."
Heather doesn't respond verbally exactly, more letting out a low moan as if still considering you request. She then turns in the driver seat to face you in the van with her feet on the floor between the front seats as she slowly begin to unbutton her blouse. Wordlessly and woth her eyes locked on yours Heather eventually reveals the bra tasked with holding back those milk filled E cups, a re-enforced wonder accenting her breasts into giving off a cock hardening mile worth of cleavage. Once her blouse is completely open she grabs hold of the front latch of her bra and pops it free, allowing her huge mammeries to practically explode from their confines. You had no idea her tits and gotten this big.
With her tits now completely exposed Heather slowly splits her legs allowing you just enough room to kneel between to them and leans back slightly in the seat with her back against the door. "What are you waiting for..." She says huskily, an unreadable look on her face.
You accept her invitation and immediately move to your knees between her legs and slip your arms around her waist, her boobs a few inches from your face. Tentatively you dart you tongue out, lapping gently against her nipple causing it instantly harden and Heather to shiver. You then cram as much of her tit into your mouth as you can and draw your first mouth full of her mother hood into your mouth, savoring the taste. After that there is no holding back, you suck from her boob as hard as you can holding her tightly around the waist, all the while Heather grabs the back of your head, pulling you deeper into her bosom.
"Oh God Timmy.., that's it! God, you suck so hard." You look up to see Heather's eyes tightly shut then notice that she is grind her crotch against your boner. "Don't stop baby, take all you want." She moans. You don't. Instead you switch breasts and suck the other nipple with equal fever earning a squeal of delight from you big sister. After about ten minutes of tit sucking you have had you fill and pull your head from her nipple only to lay it against her breasts staring up at her when she finally opens her eyes to return you gaze.
"I love you Sis..." You whisper, nuzzling your cheek into her exposed cleavage and hugging her.
"I love you to Timmy...." She returns, leaning down to kiss you lips softly, tasting her own milk on your lips. "....so much." Heather then kisses you again, only this time it's much faster and more passionate. Soon you can feel her tongue driven into your mouth as one hand finds the back of your head and the other one slips into the back of your overalls, grabbing your ass.