Bold New! by hiyabuddy
Rated: MA • 2 Reviews •
2 Summary: Set in an AU with no camera crew, Jim's interactions with Pam go a bit differently as he makes a plan to turn his increasingly unhinged daydreams into a reality.
Breaking Through by Maxine Abbott
Rated: M • 35 Reviews •15 Summary:
Not Time Travel but Time Travel adjacent.
A kind of fantasy in reverse – Pam wakes up to find herself in an alternate life without Jim, her children and much of the self-worth she found being in love with and by him. Could she find it again with Jim gone from Dunder Mifflin and without him could she break free from Roy to get back to her other life?
Disclaimer (it's been a while does it go here?) I don't own these characters or canon elements of the story or an FSU mascot - no CR infringement intended.
Baby, Come Home by Graceface
Rated: M • 26 Reviews •30 Summary: Because it's law that your first fic on MTT is based on Casino Night (JOKES), this is an AU version of that fateful night.
Before We Fall in Love by Receptionitis15
Rated: T • 4 Reviews •6 Summary:
Set in the same world as my earlier fic December 23rd, Pam phones someone else after Jim tells her he's in love with her.
Another fix it, another interpretation.
Bros before-- whatever by Kuri333
Rated: T • 19 Reviews •22 Summary: Pam wanted to help out Jim, to get closer to what once had been. Only things never seemed to go her way, and maybe help could come from other places.
Beyond the Blackboard: Year Two by WanderingWatchtower
Rated: T • 53 Reviews •46 Summary: School is back in session at Edward Truck Memorial High School. Follow our two favorite teachers as they wade though teenage hormones, handle ridiculous coworkers, and navigate their new marriage together.
Sequel to Beyond the Blackboard which you can find here.
Beauty in Ordinary Things by OfficeWriter
Rated: K • 223 Reviews •83 Summary:
Sequel to The Other Pam
Jim/Pam relationship centric
Boyfriends by emxgoldstars
Rated: T • 10 Reviews •11 Summary:
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"Boyfriends, they think you're so easy. They take you for granted."
Jim's thoughts, in a letter-esque format, as Pam leaves the reception with Roy.
Set During "Phyllis's Wedding."
Butterfly by Thats what she said
Rated: K+ • 8 Reviews •11 Summary: Pam falls asleep on Jim's shoulder and he tells her about how he felt on Diversity Day. Set sometime during the 4th season.
Baby Please Come Home by 3vasectomies
Rated: T • 14 Reviews •20 Summary: A possible scenario post-3x10/11 “Benihana Christmas”
As the song plays, his conversation with Michael not an hour earlier keeps replaying his head. She doesn’t deserve to be a distraction, no matter how broken his heart may be.
Bag of Bones by onedaymore
Rated: T • 6 Reviews •9 Summary:
Set in season 3 rather than season 8, Jim discovers he has high-blood pressure, and things only decline from there.
And yes, the title is a Mitski reference, because her music is everything.
Blue Valentine by Trish Tinkerbell
Rated: M • 8 Reviews •10 Summary: What happened after Pam asked Jim to "stay and fight" in the season 9 episode. The dukes were up and so was the temperature. There will be some unravelling and some missing pieces to put together.
Beets on the Menu by grc73
Rated: T • 16 Reviews •23 Summary:
A JAM First Date fic in 3 parts. Set during and immediately after "The Job".
Build a Lego House by emxgoldstars 
Rated: MA • 65 Reviews • 62 Summary:
What if...Jim never got Pam's note? Jim accepted the corporate job? Married Karen? Pam quit? Married Roy? What if...both are divorced and run into each other again? AU.
Back by Kuri333
Rated: K • 8 Reviews •14 Summary:
This is a teeny tiny plot bunny that has barely any plot at all.
It just came into my mind after I saw a gif of this scene (S3E8, The Merger). Enjoy.
Blocked Up by Robert Dunder
Rated: T • 45 Reviews •32 Summary: What if Pam didn't hug Jim back? Set during S9: Paper Airplane and will continue from there.
Boy Meets Girl by EosinY
Rated: K • 4 Reviews •8 Summary: Things happen. Another Jim's first day fic.
Begged and Borrowed Time by WanderingWatchtower
Rated: T • 47 Reviews •73 Summary: While Roy is on a trip, Jim finds ways to be just a little closer to Pam. And that might be just enough to make all the difference. Set in the middle of season 2.
Beets on the Tree and Christmas in their Hearts by Maxine Abbott
Rated: T • 12 Reviews •13 Summary:
It's holiday time in Scranton - Season 4
Butterflies, Snowballs and Divine Intervention by Maxine Abbott 
Rated: K+ • 20 Reviews • 16 Summary:
Pam and Jim had many missed opportunities but fate still brought them together. On Valentine's Day they realize the first missed opportunity was much earlier when they were just 13 years old at a mutual friend's Bat Mitzvah. An AU like story based in canon.
No copyright infringement intended. All I own is a love of these characters.
Beyond the Blackboard by WanderingWatchtower
Rated: T • 137 Reviews •113 Summary: An AU where Jim Halpert, a young high school English teacher, notices the new art teacher and takes it upon himself to help her get acclimated.
Big Haircut by dxggorylives
Rated: K • 9 Reviews •11 Summary:
"Sitting at her desk that morning it suddenly registered with Pam that her hair felt heavy, pulled back in that trusty barrette like it always was...
She locked her computer monitor and glanced at her reflection in the black screen, studying it intently."
An introspective look at the thought process behind Pam's haircut in the s3-s4 interim.
Bent in the Undergrowth by emxgoldstars
Rated: M • 12 Reviews •14 Summary: People don't show up in the small town of Hinton, West Virginia for nothing. Who would want to live in a town as small as this? When Pam Beesly arrives and has an accidental run-in with a local whose tragic backstory leaves him "undesirable," could her own tragic backstory come back to haunt her? AU. TW:DV.