Stuck on You (2003)

After the blockbuster success of the outrageous There's Something About Mary (1998), The Farrelly Brothers spent the next few years trying to constantly ramp up the absurdity with a string of films like Me, Myself, and Irene (2000), Shallow Hal (2001), and Stuck on You (2003), starring Matt Damon and Greg Kinnear as conjoined twins Bob and Walt. The outgoing Walt wants more from life than the shy Bob, who is content to be the fastest grill cook on Martha's Vineyard. However, when Walt gets an offer from Cher, playing herself, to be the new leading man of her hit show—one she's trying to get cancelled by hiring him in the first place—the brothers move to Hollywood where they become a sensation! Greg Kinnear and Matt Damon are frequently shirtless in the flick, which loves showing off the makeup joining them together, hence we get to see them sans shirt a lot! Nothing else though, no conjoined butt cheeks or anything... sadly!