3 months post op Smart Lipo abs flanks inner/outer thigh. Not aggressive enough. Do I need a revision or Tummy Tuck? (photo)

Although there is no substitute for an in-person evaluation, it appears from the photos and your description that it is reasonable to undergo a revision to gain more symmetry and perhaps a bit more fat removal. The surgeon, I believe, wants to have the best result possible for his or her patients so is agreeable to the revision. The skin overlying the sides of the body (mid back, flank, outer thighs, etc.) tends to respond to SmartLipo better than the abdominal skin and will likely improve with a touch up procedure. The abdominal skin (even after laser) is at risk of sagging afterwards because it lacks elasticity once the fat is removed. This is especially true if you have had children or weight gain and loss. If you have enough laxity of the skin together with abdominal muscle stretching (diastasis recti), a tummy tuck would be the most effective operation to get a flat and tighter abdomen. Please consult with a qualified plastic surgeon to be informed. 

. Were you under local vs general anesthesia? Bet local. Was your surgeon a boarded PS. Bet not. Amount of fat removed in 1st operation < 1 liter I bet!!! Few issues seen! Poorly done SmartLipo+Lipo. Better to seek in person second opinions from boarded PSs to offer aggressive lipo of any type..