Fabolous' "Can't Let You Go" and Lil' Mo's "4Ever" are both about touchin' and squeezin', but their titles also sum up the special bond the two seemingly inseparable artists share.

They've repeatedly worked on one another's records (see [article id="1459364"]"Fabolous Gets Payback From Missy, Lil' Mo For New Album"[/article]), and last week the rapper and pint-sized R&B star traveled from coast to coast together to appear on each other's videos.

Lil' Mo's video for "4Ever" was shot in Brooklyn, New York, on January 19 and 20 and directed by Benny Boom, who has also recently worked with Nas, Fat Joe and LL Cool J. In the video, Mo reminisces about her relationship with her boyfriend as she climbs the stairs of her apartment building. Each flight of steps brings up a new flashback, one of which features Fabolous.

When shooting was wrapped up for "4Ever," Mo and Fabolous flew to Los Angeles to work on the Fab's lustful tune, "Can't Let You Go." The video was shot on February 21 and 22 and directed by Erik White, who has worked on clips for Ludacris and B2K.

The footage captures the MC getting busy with, first one twin sister, then the other. The clip reveals the qualities Fabolous admires in both the ladies, one of whom is more refined than her raunchy sibling. Lil' Mo appears in the chorus, breaking up the various romantic set-ups, and the video ends with Fab dancing with three hot babes who are holding up giant letters that spell out the word "damn."

Fabolous' new album, Street Dreams, comes out March 7 and Lil' Mo's The Girl Next Door drops April 29.