Is it possible to do Liposuction on the lower part of the butt when i have implants? (photos)

I can see the area of concern from your photos. Based on what I see there are a few options to correct that area but I honestly think it is too soon to be discussing or looking into revisions. You are only 2.5 months post-op from your initial surgery and need to give your body time to adjust and heal from the surgery. That being said I believe in the future some gentle liposuction may help or you may also want to look into a small fat transfer to help with the contour issues.

There are two things that I see from your pictures. The buttocks has a very nice shape with the implants, but there is a flat area just below the implant and just above the lower buttocks fullness.
Options are to fill the flat area (BBL) or to attempt liposuction of the lower out pouch. Liposuction of the lower buttock fullness may cause deflation of the fullness but also excess skin issues. No one can tell how the lower buttock skin will react to the liposuction. Removal of skin leaves scars which may be unsightly
Best wishes
Dr. Taranow