Well, you look pretty fabulous with your present size, so it's all about your goals, as I suspect your anatomy will allow a 150cc increase. This will likely add just over a half bra cup size to your present bra size. Your proportions look wonderful in bra and clingy dress, so adding a half cup size or more to your present size may give you a somewhat more voluptuous look, if that is what you are seeking.But, you said this is what your surgeon recommended, so I can surmise that you have a bit of breast skin laxity or droop that s/he is trying to "fill up." If you like how you look naked (nipples not pointing down or breast skin hanging over your underlying breast implants (waterfall or Snoopy deformity)), then you can decide if you want silicone implants the same size, slightly larger, or 150cc larger. If your surgeon is trying to avoid a breast lift, then I understand the recommendation, which makes sense ONLY if you want to go larger on your own, since you have to buy new implants anyway.Don't be "talked into" larger implants simply because you OR your surgeon (or both) don't want the cost or scars of a breast lift. But if you truly are OK with a bit larger, then that is not a bad plan to deal with a bit more skin laxity. It also depends on whether or not you are planning more babies. You are young, and you'll have these implants for most if not all of your life. Best wishes! Dr. Tholen