Can it be common for a sister to be bigger and heavier than her twin brother in the beginning?

[Anonymous]

At birth, I used to be the bigger weighing 7lbs 9oz, 20 inches meanwhile my twin brother started at 5 Ibs 2 oz and 17 inches.

At 9 months old I was said to be 28 inches and 20 Ibs (described as a big, chubby baby) meanwhile my brother was still smaller with 26 inches and 18.5 Ibs.

During our toddler and early childhood years, I was still heavier and bigger than him by a couple inches. At age 10, meanwhile I was 5'1... he was 4'7. Age 13... I'm 5'7 and he's 5'3. For the longest, I looked older than him.

Our mom is 5'8 and dad is 6'3. Fast-foward to our adult height and it's a big difference. I'm 5'9 and 140 Ibs and he's 6'4 and 210 Ibs. Is this common? He looks nothing like his kid and early teen version.

Updates

5 mo

He actually stopped growing at the age of 20, during his 2nd year of college. When he finished HS, he was 6'1.
But yeah I used to tower over him for many years in the beginning, as a baby, as a toddler, as a child, all the way till I was 14/15... then he caught up fast.

[Twalli]

Girls typically mature at a faster rate than boys. My sister was the tallest in 6th grade, and as a senior was shorter than most guys. Girls typically grow taller before boys. So, they're usually tall and flat chested when puberty starts. Then as guys start growing tall quickly, a girl's body begins filling out with breasts. This isn't iron clad, but as young people, girls are typically bigger than boys. It's why in wrestling, before high school, girls are generally able to beat guys. This extends to 9th grade to a lesser degree; girls can generally dominate guys by strength. By 10th or 11th grade, most guys are stronger than comparatively sized girls. For example, I lost the matches I had against girls in 9th grade. Yet I won all matches from 10th until 12th grade (3 girls from 10th to 12th, 2 girls in 9th grade).

[Berethor]

Females grow faster than males, but males tend to get bigger than females eventually.

[slatyb]

You are no more closely related than any other pair of siblings. So yes, it's common.

[beefcakebradybatson]

Males hit puberty and mature physically later than females, so it's relatively common.

[queenofcardio]

It happens yeah