Not really. It’s more like saying it’s like having a fast car because you have a huge engine. Many SUV’s and even Tractor trailers can actually be pretty fast in a straight line because despite their size they tend to have large V8 engines. But getting 300hp out of a 5-8 liter engine isn’t difficult. It’s not as impressive a feat of engineering as getting 200hp out of a 1.0 liter engine. What’s more- gravity accelerates a car in a fall 0-60 in 2.7 seconds. A car which can provide powered lateral acceleration 0-60 in less than 2.7 seconds isn’t simply “fast,” but is in super car territory. Of course fast is relative... but if we are talking top speed, the terminal velocity of most cars in 1g earth atmosphere is going to fall around 200mph or so....
Wether that car reaches terminal velocity will depend on several factors including the length of the fall- so how high the cliff is (and assuming a sheer cliff,) the vehicle may not even reach higher than freeway speeds in the fall (a 2 story fall has roughly the force of a 60mph collision in an “average” car.) So if we mean “fast” by absolute velocity- the statement is also questionable. Not to mention terms like “fast” are relative. Some people consider a Toyota “fast.” A Chevy corvette will easily beat a Mazda Miata in a drag race, but the Miata dominates a compact auto cross course- so there’s a huge relativity in what we mean by “fast” cars.
TL:DR and in conclusion- the statement doesn’t hold up to scrutiny. What’s more- having big breasts because of fat is no different than having big breasts from plastic surgery or any other means. “Big” breasts, whatever one considered “big” are big. A 36B will look very large on a 5’ or under person of 115lbs or less who has a small frame, where a 38C might look small on a person with a larger frame of 6’ weighing 160lbs. There’s many factors. Breasts are made of fat. Most people will gain some breast size when they gain fat. Most people if they drop to single digit body fat percent will have little or no breast mass. Luckily women are humans and unless all you care about is breasts- they are only one piece of a complex equation which makes us see a person as attractive.
They have all 3 pairs of them.