Answer
A cup is sensible or even mandatory to wear in (organized) sports where getting hit in the genitals is a real risk. Apart from the very real pain a hit there can cause, it can also cause very real damage.
A jockstrap - unless used to hold a cup in place - isn't necessary.
Some use them instead of underwear. Many don't.
Answer
A cup is necessary to protect you from getting hit in the testicles during sports. A jockstrap can hold the cup in place. Some are made just to support the genitals while you work out, better than normal underwar would.
Jock is the slang term for an athlete. It is a reference to a jock-strap, a men's undergarment used specifically for sports.
Perhaps the biggest sensation to hit the men's underwear scene was the 1934 arrival of jock-type underwear shorts.
Two and a Half Men - 2003 A Jock Strap in Hell 6-5 is rated/received certificates of: Netherlands:6
A "jock" is a somewhat derogatory term for an athletically-inclined male who may not be terribly intellectual. It is generally a negative stereotype used by non-athletes, and comes from the "jock strap," a protective item worn by males.
Burlington or the mall or walmart
to support the back
It kind of depends. Different men wear jockstraps differently. Most often, the jockstrap replaces underwear entirely--one option. This is what I'd recommend in general. If you are wearing a hard cup, e.g. in baseball, then usually you wear the jock outside your sliding shorts. But a lot of sliding shorts have a cup pouch built in, making a jock unnecessary. In hockey, if the cup pouch isn't built in, the jock can go outside. I see no reason to wear a swimming jock if you are wearing racing trunks or jammers, so don't bother wearing a jock in this case.
Different men wear it differently. Oftentimes the jock/cup replace the underwear entirely. Otherwise the jock would typically go outside underwear, sliding shorts, etc.
yes
Mexico hosted two world cups.
I think it really does depend on the man's personality, if he is sweet, sensitive and shy (not the stereotypical jock) then most likely love, however, if the man is bold, outgoing and popular (the stereotypical jock) then most likely sex
Yes.