Megan Fox and Machine Gun Kelly's romance has been under scrutiny in recent weeks, a source tells ET that there's no trouble in paradise for the pair.«As of now, Megan and MGK are doing really well regardless of the breakup speculation,» the source says. «They both have been super busy work-wise, and personally speaking, having kids of their own, they are naturally swamped on that front as well.»Fox is the mother of three sons — Noah, 9, Bodhi, 8, and Journey, 6 — whom she shares with ex-husband Brian Austin Green. Meanwhile, Kelly is the father to a 13-year-old daughter, Casie.«All is good between the two of them and they are still making time for each other and their relationship,» the source tells ET.