Will it be possible to hide a BBL from my boyfriend?

You may be able to move about very well in about one week, although I would not recommend keeping a surgery a secret.

A bbl can greatly enhance the natural curvatures of your figure, while also creating a more sculpted body profile.It is possible to achieve your desired results with both minimal scarring and without a dramatic change which might be more noticeable to your boyfriend. 

I have seen patients hide various different procedures from family.  This takes a lot of work. After any procedure there is pain, swelling and bruising. There can always be a complication from even a minor procedure. And you will need a caregiver to help you in your early recovery. Good friends and family should support your success.

If you are not doing anything extremely drastic, it is possible to hide it depending on how perceptive your boyfriend is. BBL involves very small incisions so there should be no big scar left behind. 

I don't recommended to keep surgery a secret.A "BBL" Brazilian butt lift harvest fat from areas ( Liposuction ) with the fat removed from the areas using your own fat it transfer to the buttocks and into the hips.The common donor sites for this procedure is your posterior waist/flanks, lateral thighs, back, waist, and anterior tummy.When you're looking for a cosmetic procedure you find a surgeon that has been certified by the American Board of Plastic Surgery. Choose a board certified plastic surgeon who is highly experience in Brazilian Butt Lifts.  choose one wisely. Many surgeons, including myself, offer online virtual consultations where you send us your photos and we can estimate the cost. and free Face to face consultation.