The Stepmother 6 (2012)

When lonely widower Evan Stone announces he's become engaged, son Rocco is eager to meet his stepmother-to-be. But Rocco's curiosity turns to lust upon meeting voluptuous beauty Shay, and he finds it hard to think of her as his 'new mom'. Meanwhile, Rocco's fiance April is fighting her own attraction to Rocco's dad Evan.