If you want some experience about BBL and hips filling i can talk you about mine. I am 25 years old. I had just like you concerns about my body because it wasnt that curvy and i had hip dips( violin hips) . Even if cisgender woman can have hip dips too, its just not feminine and i totally hated it. I firstly thought that with HRT, my fat would distribute differently( according to girls here) and that i wouldnt need to worry about that but this isnt accurate. Your fat will distribute differently with time but due to being exposed to Testosterone for years, it will never be perfect. What you gain to your stomatch will not reduce or slightly even after years on HRT . This means that if you decide to gain fat in order to have curvier body, you will end up with weird shape due to having to much fat going to stomach.
After gaining fat and realising it wouldnt solve the issue, i decided to try to increase muscle mass in this area. I however figured that in order to have a small waist, i would need to lose weight but you cannot decide where you will lose fat. General rule for this is you are losing on zone where you lastly gained fat before losing where you really want to lose .. Gaining fat - ABCDE Losing fat - EDCBA . Wich means that if you gain fat everywhere before gaining it to your hips ( Zone E in this exemple) You will most likely lose what you gained on hips before losing your belly fat ... returning to starting point.
This made me realise that i would never have the shape i wanted without surgery. This is why i did a brazilian butt lift + hips filling last april. let me explain my experience.. its not 100% positive.. I saw a few surgeon here in canada before picking one. What made me decide to go with her is she guaranteed me 80% of survivability of fat cells when others could only guarantee 40-60%. She told me that she was the only one to have this new equipment that provide better result in canada. What she explained me made sense so i went with her. paid the 11 500$ fees ( omg

) She uses VaserLipo with REVOLVE filters. to be good candidate for this surgery, you must have fat to transfer. If you have nothing on waist/lower back/ thight etc. then you shouldnt get this surgery because result will depend on this. You must be willing to gain about 30-40 lbs for this surgery and forget about having a small waist for a long time. You will also be swollen for up to 6 month after the surgery.
I did this surgery at the begining of april 2017, let me tell you that this is one of the most invasive surgery i ever had even after all FFS /BA / SRS i had. It comes at rank 2 after SRS in my opinion. The surgery was supposed to last about 3 hour but it took 5 hour and half due to complication. She was used to do it with ciswoman but it was the first time with transwoman. She didnt expect hips zone to be so thin ( skin elasticity) . She had to stretch the skin with different method in order to create room for the fat and she couldnt move as much as planned . She explained me that if she added more , what she transfered here could have died because it was to packed. She said that it is not like that with cis woman and it was a surprise to her. Anyway. After the surgery i was soooooooooo proud of what she did .. However .. it didnt survive as expected. The more days passed, the more it affected the result and i could see hips dips reappearing. I was pissed and very dissapointed so i called her and we booked a new consultation. She said that she was very proud of overall result and she showed me some before/after picture she took and she was right. It was a really big change. However she understood my dissapointment because only about 30% did stay to hips and maybe 60% on butt and she accepted to do a free revision but 5 month after surgery. She asked me to gain as much fat (an extra 10 lbs or so) as i can before the surgery date and that she isnt worried about the result after the revision. My surgery is planned last week of august.
So let me resume... in order to acchieve dream female body shape. I have to go through TWO brazilian butt lift.
4 week for exercising .
2 week for sex.
6 week for swelling/bruising to go down .
6 month for final result .
3 week wearing compressive body suit
3 week not allowed to sleep on side or on my back . I have to sleep on my chest all the time .
3 week unallowed to sit.
all that TWICE.
Im currently 3 month and 20 days post first surgery and i still have swelling . After the revision, i will have swelling for months again before i can have a normal waist.. so for those who says that having BBL is the easy issue.. its not.. REALLY not an easy issue. You still have to train and eat healthly after that to acchieve end goal.