Bonnie Keeps a Major Secret from Christy on Mom Episode 19

"Mashed Potatoes and a Little Nitrous"

Christy (Anna Faris, center) and Bonnie (Allison Janney, right) have dinner with Roscoe (Blake Garrett Rosenthal, left), on MOM, Thursday, April 9 (9:30 -- 10:00 PM ET,PT) on the CBS Television Network. Photo: Neil Jacobs/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved

All in a row

Christy (Anna Faris, left), Jill (Jaime Pressly, center) and Regina (Octavia Spencer, right) attend a meeting, on MOM, Thursday, April 9 (9:30 -- 10:00 PM ET,PT) on the CBS Television Network. Photo: Neil Jacobs/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved

All about extremes

Bonnie (Allison Janney) goes to extremes to keep a major secret from Christy, on MOM, Thursday, April 9 (9:30 -- 10:00 PM ET,PT) on the CBS Television Network. Photo: Neil Jacobs/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved

Talking over snacks

Marjorie (Mimi Kennedy, far left), Christy (Anna Faris, center left), Regina (Octavia Spencer, center right) and Jill (Jaime Pressly, far right) attend a meeting, on MOM, Thursday, April 9 (9:30 -- 10:00 PM ET,PT) on the CBS Television Network. Photo: Neil Jacobs/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved

Bonnie is approached by the ladies

Marjorie (Mimi Kennedy, center left), Christy (Anna Faris, center), Regina (Octavia Spencer, center right) and Jill (Jaime Pressly, far right) approach Bonnie (Allison Janney, far left) about her behavior, on MOM, Thursday, April 9 (9:30 -- 10:00 PM ET,PT) on the CBS Television Network. Photo: Neil Jacobs/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved

Secrets don't make friends

Bonnie (Allison Janney) goes to extremes to keep a major secret from Christy (Anna Faris), on MOM, Thursday, April 9 (9:30 -- 10:00 PM ET,PT) on the CBS Television Network. Photo: Neil Jacobs/CBS ©2015 CBS Broadcasting, Inc. All Rights Reserved