The actress, 44, dons lacy cream lingerie and caresses her bottom as she writhes around to Mickey Avalon's song Stroke Me.
Jennifer plays stripper Rose in the comedy film, who pretends to be married to Jason Sudeikis's drug dealer character David to help him smuggle weed across the Mexican border.
David also enlists dorky kid Kenny and runaway Kasey - played by Will Poulter and Emma Roberts - to be his children.
Rose shows off her moves in order to save her fake family when they're held hostage by a group of Mexican thugs.
Earlier in the movie, Jennifer wears a dark short wig and a platinum blonde hairpiece for scenes at Rose's lap dancing club.
The trailer also sees the former Friends star's breasts being groped by another woman in a funny sequence set in a tent.
