Bonnie Keeps a Major Secret from Christy on Mom Episode 19

1. "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

2. 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

3. 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

4. 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

5. 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

6. 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