The full effect of liposuction is seen six to 12 weeks after the procedure is performed. After the procedure, the area is bandaged and the patient must wear a compression garment for one to two weeks. Pain and bruising may last up to two weeks, and swelling may last for two weeks to two months.
This leads to lots of chromosome mixing. Mixing lowers the chances of siblings inheriting the same big chunks of DNA. So on average, two siblings will share about 50% of their DNA. In rare cases where a brother and a sister share more than 50%, they will be more similar than two sisters.
Not even identical twins have the same DNA--although theirs would be far closer than anyone else's. DNA changes over time. Odds of two siblings having the same DNA who did not split from the same zygote are vanishingly small.