Jessica Alba holds a melting ice cream cone in one of the promo posters for Good Luck Chuck. I’m guessing they couldn’t talk her into letting it drip off her tongue, but I’m also guessing that is what they wanted. The other two promo ads feature Jessica Alba’s co-stars in other sexually suggestive poses.One man appears to be getting a blowjob while the other holds up a grapefruit with a hole in it that suggests he couldn’t find a nice warm apple pie. Funny that Jessica Alba’s picture is the tamest of the three.The other images that is getting a…